Finding the Fourth Proportional to 538,061.80, 742,516.12 and 296,367

Step by Step Solution

1. Step 1: Write the proportion equation
   538,061.80 : 742,516.12 = 296,367 : x
2. Step 2: Convert to fraction form
   538,061.80/742,516.12 = 296,367/x
3. Step 3: Cross multiply
   538,061.80x = 742,516.12 × 296,367
4. Step 4: Simplify right side
   538,061.80x = 220,057,274,936.04
5. Step 5: Solve for x
   x = 220,057,274,936.04/538,061.80
6. Step 6: Final answer
   x = 408,981.41