Finding the Fourth Proportional to 25,222.32, 34,816.29 and 19,830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,222.32 : 34,816.29 = 19,830.72 : x
2. Step 2: Convert to fraction form
   25,222.32/34,816.29 = 19,830.72/x
3. Step 3: Cross multiply
   25,222.32x = 34,816.29 × 19,830.72
4. Step 4: Simplify right side
   25,222.32x = 690,432,098.43
5. Step 5: Solve for x
   x = 690,432,098.43/25,222.32
6. Step 6: Final answer
   x = 27,373.85