Finding the Fourth Proportional to 25,665.30, 35,412.06 and 14,903.78

Step by Step Solution

1. Step 1: Write the proportion equation
   25,665.30 : 35,412.06 = 14,903.78 : x
2. Step 2: Convert to fraction form
   25,665.30/35,412.06 = 14,903.78/x
3. Step 3: Cross multiply
   25,665.30x = 35,412.06 × 14,903.78
4. Step 4: Simplify right side
   25,665.30x = 527,773,374.53
5. Step 5: Solve for x
   x = 527,773,374.53/25,665.30
6. Step 6: Final answer
   x = 20,563.69