Finding the Fourth Proportional to 87,706.47, 121,090.27 and 60,839.58

Step by Step Solution

1. Step 1: Write the proportion equation
   87,706.47 : 121,090.27 = 60,839.58 : x
2. Step 2: Convert to fraction form
   87,706.47/121,090.27 = 60,839.58/x
3. Step 3: Cross multiply
   87,706.47x = 121,090.27 × 60,839.58
4. Step 4: Simplify right side
   87,706.47x = 7,367,081,168.89
5. Step 5: Solve for x
   x = 7,367,081,168.89/87,706.47
6. Step 6: Final answer
   x = 83,997.01