Finding the Fourth Proportional to 25,595.69, 35,309.98 and 14,978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   25,595.69 : 35,309.98 = 14,978.75 : x
2. Step 2: Convert to fraction form
   25,595.69/35,309.98 = 14,978.75/x
3. Step 3: Cross multiply
   25,595.69x = 35,309.98 × 14,978.75
4. Step 4: Simplify right side
   25,595.69x = 528,899,362.93
5. Step 5: Solve for x
   x = 528,899,362.93/25,595.69
6. Step 6: Final answer
   x = 20,663.61