Finding the Fourth Proportional to 543,131.31, 749,521.62 and 301,414.05

Step by Step Solution

1. Step 1: Write the proportion equation
   543,131.31 : 749,521.62 = 301,414.05 : x
2. Step 2: Convert to fraction form
   543,131.31/749,521.62 = 301,414.05/x
3. Step 3: Cross multiply
   543,131.31x = 749,521.62 × 301,414.05
4. Step 4: Simplify right side
   543,131.31x = 225,916,347,046.76
5. Step 5: Solve for x
   x = 225,916,347,046.76/543,131.31
6. Step 6: Final answer
   x = 415,951.62