Finding the Fourth Proportional to 25,978.08, 35,847.86 and 14,646.99

Step by Step Solution

1. Step 1: Write the proportion equation
   25,978.08 : 35,847.86 = 14,646.99 : x
2. Step 2: Convert to fraction form
   25,978.08/35,847.86 = 14,646.99/x
3. Step 3: Cross multiply
   25,978.08x = 35,847.86 × 14,646.99
4. Step 4: Simplify right side
   25,978.08x = 525,063,173.71
5. Step 5: Solve for x
   x = 525,063,173.71/25,978.08
6. Step 6: Final answer
   x = 20,211.78