Finding the Fourth Proportional to 224,760.52, 337,139.55 and 91,640.26

Step by Step Solution

1. Step 1: Write the proportion equation
   224,760.52 : 337,139.55 = 91,640.26 : x
2. Step 2: Convert to fraction form
   224,760.52/337,139.55 = 91,640.26/x
3. Step 3: Cross multiply
   224,760.52x = 337,139.55 × 91,640.26
4. Step 4: Simplify right side
   224,760.52x = 30,895,556,018.28
5. Step 5: Solve for x
   x = 30,895,556,018.28/224,760.52
6. Step 6: Final answer
   x = 137,459.89