Finding the Fourth Proportional to 443,114.88, 611,568.72 and 281,801.76

Step by Step Solution

1. Step 1: Write the proportion equation
   443,114.88 : 611,568.72 = 281,801.76 : x
2. Step 2: Convert to fraction form
   443,114.88/611,568.72 = 281,801.76/x
3. Step 3: Cross multiply
   443,114.88x = 611,568.72 × 281,801.76
4. Step 4: Simplify right side
   443,114.88x = 172,341,141,656.95
5. Step 5: Solve for x
   x = 172,341,141,656.95/443,114.88
6. Step 6: Final answer
   x = 388,931.06