Finding the Fourth Proportional to 30,527.64, 42,131.88 and 18,592.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,527.64 : 42,131.88 = 18,592.71 : x
2. Step 2: Convert to fraction form
   30,527.64/42,131.88 = 18,592.71/x
3. Step 3: Cross multiply
   30,527.64x = 42,131.88 × 18,592.71
4. Step 4: Simplify right side
   30,527.64x = 783,345,826.59
5. Step 5: Solve for x
   x = 783,345,826.59/30,527.64
6. Step 6: Final answer
   x = 25,660.22