Finding the Fourth Proportional to 82,578.76, 123,768.06 and 38,113

Step by Step Solution

1. Step 1: Write the proportion equation
   82,578.76 : 123,768.06 = 38,113 : x
2. Step 2: Convert to fraction form
   82,578.76/123,768.06 = 38,113/x
3. Step 3: Cross multiply
   82,578.76x = 123,768.06 × 38,113
4. Step 4: Simplify right side
   82,578.76x = 4,717,172,070.78
5. Step 5: Solve for x
   x = 4,717,172,070.78/82,578.76
6. Step 6: Final answer
   x = 57,123.31