Finding the Fourth Proportional to 38,079.72, 52,499.61 and 31,248.72

Step by Step Solution

1. Step 1: Write the proportion equation
   38,079.72 : 52,499.61 = 31,248.72 : x
2. Step 2: Convert to fraction form
   38,079.72/52,499.61 = 31,248.72/x
3. Step 3: Cross multiply
   38,079.72x = 52,499.61 × 31,248.72
4. Step 4: Simplify right side
   38,079.72x = 1,640,545,613.00
5. Step 5: Solve for x
   x = 1,640,545,613.00/38,079.72
6. Step 6: Final answer
   x = 43,081.87