Finding the Fourth Proportional to 3,157,893,451.52, 4,357,720,315.20 and 1,728,688,076.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,157,893,451.52 : 4,357,720,315.20 = 1,728,688,076.72 : x
2. Step 2: Convert to fraction form
   3,157,893,451.52/4,357,720,315.20 = 1,728,688,076.72/x
3. Step 3: Cross multiply
   3,157,893,451.52x = 4,357,720,315.20 × 1,728,688,076.72
4. Step 4: Simplify right side
   3,157,893,451.52x = 7,533,139,150,566,760,448
5. Step 5: Solve for x
   x = 7,533,139,150,566,760,448/3,157,893,451.52
6. Step 6: Final answer
   x = 2,385,495,035.29