Finding the Fourth Proportional to 69,131.72, 95,403.59 and 38,918.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,131.72 : 95,403.59 = 38,918.15 : x
2. Step 2: Convert to fraction form
   69,131.72/95,403.59 = 38,918.15/x
3. Step 3: Cross multiply
   69,131.72x = 95,403.59 × 38,918.15
4. Step 4: Simplify right side
   69,131.72x = 3,712,931,561.96
5. Step 5: Solve for x
   x = 3,712,931,561.96/69,131.72
6. Step 6: Final answer
   x = 53,708.07