Finding the Fourth Proportional to 25,109.43, 37,617.54 and 17,978.95

Step by Step Solution

1. Step 1: Write the proportion equation
   25,109.43 : 37,617.54 = 17,978.95 : x
2. Step 2: Convert to fraction form
   25,109.43/37,617.54 = 17,978.95/x
3. Step 3: Cross multiply
   25,109.43x = 37,617.54 × 17,978.95
4. Step 4: Simplify right side
   25,109.43x = 676,323,870.78
5. Step 5: Solve for x
   x = 676,323,870.78/25,109.43
6. Step 6: Final answer
   x = 26,935.05