Finding the Fourth Proportional to 537,064.82, 740,939.69 and 307,499.42

Step by Step Solution

1. Step 1: Write the proportion equation
   537,064.82 : 740,939.69 = 307,499.42 : x
2. Step 2: Convert to fraction form
   537,064.82/740,939.69 = 307,499.42/x
3. Step 3: Cross multiply
   537,064.82x = 740,939.69 × 307,499.42
4. Step 4: Simplify right side
   537,064.82x = 227,838,522,308.88
5. Step 5: Solve for x
   x = 227,838,522,308.88/537,064.82
6. Step 6: Final answer
   x = 424,229.09