Finding the Fourth Proportional to 117,122,068.71, 161,628,469.88 and 64,914,474.87

Step by Step Solution

1. Step 1: Write the proportion equation
   117,122,068.71 : 161,628,469.88 = 64,914,474.87 : x
2. Step 2: Convert to fraction form
   117,122,068.71/161,628,469.88 = 64,914,474.87/x
3. Step 3: Cross multiply
   117,122,068.71x = 161,628,469.88 × 64,914,474.87
4. Step 4: Simplify right side
   117,122,068.71x = 10,492,027,245,977,240
5. Step 5: Solve for x
   x = 10,492,027,245,977,240/117,122,068.71
6. Step 6: Final answer
   x = 89,581,983.66