Finding the Fourth Proportional to 224,661.48, 336,985.72 and 91,508.80

Step by Step Solution

1. Step 1: Write the proportion equation
   224,661.48 : 336,985.72 = 91,508.80 : x
2. Step 2: Convert to fraction form
   224,661.48/336,985.72 = 91,508.80/x
3. Step 3: Cross multiply
   224,661.48x = 336,985.72 × 91,508.80
4. Step 4: Simplify right side
   224,661.48x = 30,837,158,854.34
5. Step 5: Solve for x
   x = 30,837,158,854.34/224,661.48
6. Step 6: Final answer
   x = 137,260.55