Finding the Fourth Proportional to 142,445.67, 213,833.47 and 83,323.77

Step by Step Solution

1. Step 1: Write the proportion equation
   142,445.67 : 213,833.47 = 83,323.77 : x
2. Step 2: Convert to fraction form
   142,445.67/213,833.47 = 83,323.77/x
3. Step 3: Cross multiply
   142,445.67x = 213,833.47 × 83,323.77
4. Step 4: Simplify right side
   142,445.67x = 17,817,410,872.58
5. Step 5: Solve for x
   x = 17,817,410,872.58/142,445.67
6. Step 6: Final answer
   x = 125,082.15