Finding the Fourth Proportional to 89,539.57, 123,501.39 and 76,017.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,539.57 : 123,501.39 = 76,017.76 : x
2. Step 2: Convert to fraction form
   89,539.57/123,501.39 = 76,017.76/x
3. Step 3: Cross multiply
   89,539.57x = 123,501.39 × 76,017.76
4. Step 4: Simplify right side
   89,539.57x = 9,388,299,024.69
5. Step 5: Solve for x
   x = 9,388,299,024.69/89,539.57
6. Step 6: Final answer
   x = 104,850.84