Finding the Fourth Proportional to 25,720.32, 35,404.16 and 22,402.56

Step by Step Solution

1. Step 1: Write the proportion equation
   25,720.32 : 35,404.16 = 22,402.56 : x
2. Step 2: Convert to fraction form
   25,720.32/35,404.16 = 22,402.56/x
3. Step 3: Cross multiply
   25,720.32x = 35,404.16 × 22,402.56
4. Step 4: Simplify right side
   25,720.32x = 793,143,818.65
5. Step 5: Solve for x
   x = 793,143,818.65/25,720.32
6. Step 6: Final answer
   x = 30,837.25