Finding the Fourth Proportional to 89,584.38, 123,475.59 and 61,240.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,584.38 : 123,475.59 = 61,240.86 : x
2. Step 2: Convert to fraction form
   89,584.38/123,475.59 = 61,240.86/x
3. Step 3: Cross multiply
   89,584.38x = 123,475.59 × 61,240.86
4. Step 4: Simplify right side
   89,584.38x = 7,561,751,320.61
5. Step 5: Solve for x
   x = 7,561,751,320.61/89,584.38
6. Step 6: Final answer
   x = 84,409.26