Finding the Fourth Proportional to 224,401.59, 309,702.96 and 128,926.76

Step by Step Solution

1. Step 1: Write the proportion equation
   224,401.59 : 309,702.96 = 128,926.76 : x
2. Step 2: Convert to fraction form
   224,401.59/309,702.96 = 128,926.76/x
3. Step 3: Cross multiply
   224,401.59x = 309,702.96 × 128,926.76
4. Step 4: Simplify right side
   224,401.59x = 39,928,997,646.69
5. Step 5: Solve for x
   x = 39,928,997,646.69/224,401.59
6. Step 6: Final answer
   x = 177,935.45