Finding the Fourth Proportional to 40,488.72, 55,837.92 and 25,382.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,488.72 : 55,837.92 = 25,382.88 : x
2. Step 2: Convert to fraction form
   40,488.72/55,837.92 = 25,382.88/x
3. Step 3: Cross multiply
   40,488.72x = 55,837.92 × 25,382.88
4. Step 4: Simplify right side
   40,488.72x = 1,417,327,222.81
5. Step 5: Solve for x
   x = 1,417,327,222.81/40,488.72
6. Step 6: Final answer
   x = 35,005.48