Finding the Fourth Proportional to 91,887.78, 137,814.27 and 25,311.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,887.78 : 137,814.27 = 25,311.30 : x
2. Step 2: Convert to fraction form
   91,887.78/137,814.27 = 25,311.30/x
3. Step 3: Cross multiply
   91,887.78x = 137,814.27 × 25,311.30
4. Step 4: Simplify right side
   91,887.78x = 3,488,258,332.25
5. Step 5: Solve for x
   x = 3,488,258,332.25/91,887.78
6. Step 6: Final answer
   x = 37,962.16