Finding the Fourth Proportional to 224,327.04, 309,570.72 and 128,839.92

Step by Step Solution

1. Step 1: Write the proportion equation
   224,327.04 : 309,570.72 = 128,839.92 : x
2. Step 2: Convert to fraction form
   224,327.04/309,570.72 = 128,839.92/x
3. Step 3: Cross multiply
   224,327.04x = 309,570.72 × 128,839.92
4. Step 4: Simplify right side
   224,327.04x = 39,885,066,799.14
5. Step 5: Solve for x
   x = 39,885,066,799.14/224,327.04
6. Step 6: Final answer
   x = 177,798.75