Finding the Fourth Proportional to 88,684.69, 122,434.59 and 61,500.28

Step by Step Solution

1. Step 1: Write the proportion equation
   88,684.69 : 122,434.59 = 61,500.28 : x
2. Step 2: Convert to fraction form
   88,684.69/122,434.59 = 61,500.28/x
3. Step 3: Cross multiply
   88,684.69x = 122,434.59 × 61,500.28
4. Step 4: Simplify right side
   88,684.69x = 7,529,761,566.69
5. Step 5: Solve for x
   x = 7,529,761,566.69/88,684.69
6. Step 6: Final answer
   x = 84,904.86