Finding the Fourth Proportional to 100,833.53, 139,153.55 and 55,516.14

Step by Step Solution

1. Step 1: Write the proportion equation
   100,833.53 : 139,153.55 = 55,516.14 : x
2. Step 2: Convert to fraction form
   100,833.53/139,153.55 = 55,516.14/x
3. Step 3: Cross multiply
   100,833.53x = 139,153.55 × 55,516.14
4. Step 4: Simplify right side
   100,833.53x = 7,725,267,685.72
5. Step 5: Solve for x
   x = 7,725,267,685.72/100,833.53
6. Step 6: Final answer
   x = 76,614.08