Finding the Fourth Proportional to 25,878.32, 35,709.72 and 14,545.20

Step by Step Solution

1. Step 1: Write the proportion equation
   25,878.32 : 35,709.72 = 14,545.20 : x
2. Step 2: Convert to fraction form
   25,878.32/35,709.72 = 14,545.20/x
3. Step 3: Cross multiply
   25,878.32x = 35,709.72 × 14,545.20
4. Step 4: Simplify right side
   25,878.32x = 519,405,019.34
5. Step 5: Solve for x
   x = 519,405,019.34/25,878.32
6. Step 6: Final answer
   x = 20,071.05