Finding the Fourth Proportional to 123,069,243.60, 169,887,849.96 and 76,682,415.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,069,243.60 : 169,887,849.96 = 76,682,415.88 : x
2. Step 2: Convert to fraction form
   123,069,243.60/169,887,849.96 = 76,682,415.88/x
3. Step 3: Cross multiply
   123,069,243.60x = 169,887,849.96 × 76,682,415.88
4. Step 4: Simplify right side
   123,069,243.60x = 13,027,410,763,591,762
5. Step 5: Solve for x
   x = 13,027,410,763,591,762/123,069,243.60
6. Step 6: Final answer
   x = 105,854,317.31