Finding the Fourth Proportional to 82,580.76, 123,771.06 and 38,115

Step by Step Solution

1. Step 1: Write the proportion equation
   82,580.76 : 123,771.06 = 38,115 : x
2. Step 2: Convert to fraction form
   82,580.76/123,771.06 = 38,115/x
3. Step 3: Cross multiply
   82,580.76x = 123,771.06 × 38,115
4. Step 4: Simplify right side
   82,580.76x = 4,717,533,951.90
5. Step 5: Solve for x
   x = 4,717,533,951.90/82,580.76
6. Step 6: Final answer
   x = 57,126.31