Finding the Fourth Proportional to 224,414.55, 336,424.73 and 91,406.61

Step by Step Solution

1. Step 1: Write the proportion equation
   224,414.55 : 336,424.73 = 91,406.61 : x
2. Step 2: Convert to fraction form
   224,414.55/336,424.73 = 91,406.61/x
3. Step 3: Cross multiply
   224,414.55x = 336,424.73 × 91,406.61
4. Step 4: Simplify right side
   224,414.55x = 30,751,443,632.43
5. Step 5: Solve for x
   x = 30,751,443,632.43/224,414.55
6. Step 6: Final answer
   x = 137,029.63