Finding the Fourth Proportional to 123,069,128.76, 169,887,691.47 and 76,682,301.06

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069,128.76 : 169,887,691.47 = 76,682,301.06 : x
2. Step 2: Convert to fraction form
   123,069,128.76/169,887,691.47 = 76,682,301.06/x
3. Step 3: Cross multiply
   123,069,128.76x = 169,887,691.47 × 76,682,301.06
4. Step 4: Simplify right side
   123,069,128.76x = 13,027,379,103,690,934
5. Step 5: Solve for x
   x = 13,027,379,103,690,934/123,069,128.76
6. Step 6: Final answer
   x = 105,854,158.84