Finding the Fourth Proportional to 744,997,022,492.71, 1,028,287,178,367.30 and 485,222,067,467.94

Step by Step Solution

1. Step 1: Write the proportion equation
   744,997,022,492.71 : 1,028,287,178,367.30 = 485,222,067,467.94 : x
2. Step 2: Convert to fraction form
   744,997,022,492.71/1,028,287,178,367.30 = 485,222,067,467.94/x
3. Step 3: Cross multiply
   744,997,022,492.71x = 1,028,287,178,367.30 × 485,222,067,467.94
4. Step 4: Simplify right side
   744,997,022,492.71x = 498,947,630,638,155,725,537,280
5. Step 5: Solve for x
   x = 498,947,630,638,155,725,537,280/744,997,022,492.71
6. Step 6: Final answer
   x = 669,731,039,955.99