Finding the Fourth Proportional to 1,231,067,705.97, 1,846,715,077.82 and 402,025,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,067,705.97 : 1,846,715,077.82 = 402,025,693.50 : x
2. Step 2: Convert to fraction form
   1,231,067,705.97/1,846,715,077.82 = 402,025,693.50/x
3. Step 3: Cross multiply
   1,231,067,705.97x = 1,846,715,077.82 × 402,025,693.50
4. Step 4: Simplify right side
   1,231,067,705.97x = 742,426,909,857,491,968
5. Step 5: Solve for x
   x = 742,426,909,857,491,968/1,231,067,705.97
6. Step 6: Final answer
   x = 603,075,611.73