Finding the Fourth Proportional to 142,801.10, 214,055.85 and 83,606.30

Step by Step Solution

1. Step 1: Write the proportion equation
   142,801.10 : 214,055.85 = 83,606.30 : x
2. Step 2: Convert to fraction form
   142,801.10/214,055.85 = 83,606.30/x
3. Step 3: Cross multiply
   142,801.10x = 214,055.85 × 83,606.30
4. Step 4: Simplify right side
   142,801.10x = 17,896,417,611.86
5. Step 5: Solve for x
   x = 17,896,417,611.86/142,801.10
6. Step 6: Final answer
   x = 125,324.09