Finding the Fourth Proportional to 71,886.95, 107,878.42 and 25,139.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71,886.95 : 107,878.42 = 25,139.83 : x
2. Step 2: Convert to fraction form
   71,886.95/107,878.42 = 25,139.83/x
3. Step 3: Cross multiply
   71,886.95x = 107,878.42 × 25,139.83
4. Step 4: Simplify right side
   71,886.95x = 2,712,044,869.77
5. Step 5: Solve for x
   x = 2,712,044,869.77/71,886.95
6. Step 6: Final answer
   x = 37,726.52