Finding the Fourth Proportional to 25,411.56, 35,085.45 and 19,432.81

Step by Step Solution

1. Step 1: Write the proportion equation
   25,411.56 : 35,085.45 = 19,432.81 : x
2. Step 2: Convert to fraction form
   25,411.56/35,085.45 = 19,432.81/x
3. Step 3: Cross multiply
   25,411.56x = 35,085.45 × 19,432.81
4. Step 4: Simplify right side
   25,411.56x = 681,808,883.61
5. Step 5: Solve for x
   x = 681,808,883.61/25,411.56
6. Step 6: Final answer
   x = 26,830.66