Finding the Fourth Proportional to 428,940,290.77, 591,890,238.52 and 240,725,416.10

Step by Step Solution

1. Step 1: Write the proportion equation
   428,940,290.77 : 591,890,238.52 = 240,725,416.10 : x
2. Step 2: Convert to fraction form
   428,940,290.77/591,890,238.52 = 240,725,416.10/x
3. Step 3: Cross multiply
   428,940,290.77x = 591,890,238.52 × 240,725,416.10
4. Step 4: Simplify right side
   428,940,290.77x = 142,483,023,949,694,000
5. Step 5: Solve for x
   x = 142,483,023,949,694,000/428,940,290.77
6. Step 6: Final answer
   x = 332,174,493.79