Finding the Fourth Proportional to 139,714.16, 209,586.24 and 59,760.43

Step by Step Solution

1. Step 1: Write the proportion equation
   139,714.16 : 209,586.24 = 59,760.43 : x
2. Step 2: Convert to fraction form
   139,714.16/209,586.24 = 59,760.43/x
3. Step 3: Cross multiply
   139,714.16x = 209,586.24 × 59,760.43
4. Step 4: Simplify right side
   139,714.16x = 12,524,963,824.48
5. Step 5: Solve for x
   x = 12,524,963,824.48/139,714.16
6. Step 6: Final answer
   x = 89,647.06