Finding the Fourth Proportional to 91,539, 137,304.38 and 24,978.90

Step by Step Solution

1. Step 1: Write the proportion equation
   91,539 : 137,304.38 = 24,978.90 : x
2. Step 2: Convert to fraction form
   91,539/137,304.38 = 24,978.90/x
3. Step 3: Cross multiply
   91,539x = 137,304.38 × 24,978.90
4. Step 4: Simplify right side
   91,539x = 3,429,712,377.58
5. Step 5: Solve for x
   x = 3,429,712,377.58/91,539
6. Step 6: Final answer
   x = 37,467.23