Finding the Fourth Proportional to 541,002,407.68, 746,198,448.72 and 496,492,113.96

Step by Step Solution

1. Step 1: Write the proportion equation
   541,002,407.68 : 746,198,448.72 = 496,492,113.96 : x
2. Step 2: Convert to fraction form
   541,002,407.68/746,198,448.72 = 496,492,113.96/x
3. Step 3: Cross multiply
   541,002,407.68x = 746,198,448.72 × 496,492,113.96
4. Step 4: Simplify right side
   541,002,407.68x = 370,481,645,238,665,472
5. Step 5: Solve for x
   x = 370,481,645,238,665,472/541,002,407.68
6. Step 6: Final answer
   x = 684,805,908.40