Finding the Fourth Proportional to 82,800.42, 124,117.58 and 38,458.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,800.42 : 124,117.58 = 38,458.31 : x
2. Step 2: Convert to fraction form
   82,800.42/124,117.58 = 38,458.31/x
3. Step 3: Cross multiply
   82,800.42x = 124,117.58 × 38,458.31
4. Step 4: Simplify right side
   82,800.42x = 4,773,352,774.53
5. Step 5: Solve for x
   x = 4,773,352,774.53/82,800.42
6. Step 6: Final answer
   x = 57,648.90