Finding the Fourth Proportional to 83,213.16, 124,654.59 and 38,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,213.16 : 124,654.59 = 38,778.72 : x
2. Step 2: Convert to fraction form
   83,213.16/124,654.59 = 38,778.72/x
3. Step 3: Cross multiply
   83,213.16x = 124,654.59 × 38,778.72
4. Step 4: Simplify right side
   83,213.16x = 4,833,945,442.32
5. Step 5: Solve for x
   x = 4,833,945,442.32/83,213.16
6. Step 6: Final answer
   x = 58,091.12