Finding the Fourth Proportional to 82,105,714.53, 112,702,337.88 and 72,605,124.09

Step by Step Solution

1. Step 1: Write the proportion equation
   82,105,714.53 : 112,702,337.88 = 72,605,124.09 : x
2. Step 2: Convert to fraction form
   82,105,714.53/112,702,337.88 = 72,605,124.09/x
3. Step 3: Cross multiply
   82,105,714.53x = 112,702,337.88 × 72,605,124.09
4. Step 4: Simplify right side
   82,105,714.53x = 8,182,767,227,010,508
5. Step 5: Solve for x
   x = 8,182,767,227,010,508/82,105,714.53
6. Step 6: Final answer
   x = 99,661,360.65