Finding the Fourth Proportional to 25,070.56, 37,532.72 and 21,728.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,070.56 : 37,532.72 = 21,728.72 : x
2. Step 2: Convert to fraction form
   25,070.56/37,532.72 = 21,728.72/x
3. Step 3: Cross multiply
   25,070.56x = 37,532.72 × 21,728.72
4. Step 4: Simplify right side
   25,070.56x = 815,537,963.72
5. Step 5: Solve for x
   x = 815,537,963.72/25,070.56
6. Step 6: Final answer
   x = 32,529.71