Finding the Fourth Proportional to 338,443.86, 507,131.72 and 124,917.88

Step by Step Solution

1. Step 1: Write the proportion equation
   338,443.86 : 507,131.72 = 124,917.88 : x
2. Step 2: Convert to fraction form
   338,443.86/507,131.72 = 124,917.88/x
3. Step 3: Cross multiply
   338,443.86x = 507,131.72 × 124,917.88
4. Step 4: Simplify right side
   338,443.86x = 63,349,819,343.15
5. Step 5: Solve for x
   x = 63,349,819,343.15/338,443.86
6. Step 6: Final answer
   x = 187,179.70