Finding the Fourth Proportional to 23,545.49, 32,478.37 and 13,978.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,545.49 : 32,478.37 = 13,978.89 : x
2. Step 2: Convert to fraction form
   23,545.49/32,478.37 = 13,978.89/x
3. Step 3: Cross multiply
   23,545.49x = 32,478.37 × 13,978.89
4. Step 4: Simplify right side
   23,545.49x = 454,011,526.66
5. Step 5: Solve for x
   x = 454,011,526.66/23,545.49
6. Step 6: Final answer
   x = 19,282.31