Finding the Fourth Proportional to 338,147.69, 507,031.52 and 231,651.72

Step by Step Solution

1. Step 1: Write the proportion equation
   338,147.69 : 507,031.52 = 231,651.72 : x
2. Step 2: Convert to fraction form
   338,147.69/507,031.52 = 231,651.72/x
3. Step 3: Cross multiply
   338,147.69x = 507,031.52 × 231,651.72
4. Step 4: Simplify right side
   338,147.69x = 117,454,722,543.96
5. Step 5: Solve for x
   x = 117,454,722,543.96/338,147.69
6. Step 6: Final answer
   x = 347,347.41