Finding the Fourth Proportional to 91,941.40, 137,909.35 and 25,385.59

Step by Step Solution

1. Step 1: Write the proportion equation
   91,941.40 : 137,909.35 = 25,385.59 : x
2. Step 2: Convert to fraction form
   91,941.40/137,909.35 = 25,385.59/x
3. Step 3: Cross multiply
   91,941.40x = 137,909.35 × 25,385.59
4. Step 4: Simplify right side
   91,941.40x = 3,500,910,216.27
5. Step 5: Solve for x
   x = 3,500,910,216.27/91,941.40
6. Step 6: Final answer
   x = 38,077.63