Finding the Fourth Proportional to 89,829.69, 123,947.87 and 61,525.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,829.69 : 123,947.87 = 61,525.05 : x
2. Step 2: Convert to fraction form
   89,829.69/123,947.87 = 61,525.05/x
3. Step 3: Cross multiply
   89,829.69x = 123,947.87 × 61,525.05
4. Step 4: Simplify right side
   89,829.69x = 7,625,898,591.52
5. Step 5: Solve for x
   x = 7,625,898,591.52/89,829.69
6. Step 6: Final answer
   x = 84,892.85