Finding the Fourth Proportional to 25,700.52, 35,486.82 and 19,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,700.52 : 35,486.82 = 19,722.72 : x
2. Step 2: Convert to fraction form
   25,700.52/35,486.82 = 19,722.72/x
3. Step 3: Cross multiply
   25,700.52x = 35,486.82 × 19,722.72
4. Step 4: Simplify right side
   25,700.52x = 699,896,614.55
5. Step 5: Solve for x
   x = 699,896,614.55/25,700.52
6. Step 6: Final answer
   x = 27,232.78