Finding the Fourth Proportional to 14,981.16, 20,667.71 and 9,948.11

Step by Step Solution

1. Step 1: Write the proportion equation
   14,981.16 : 20,667.71 = 9,948.11 : x
2. Step 2: Convert to fraction form
   14,981.16/20,667.71 = 9,948.11/x
3. Step 3: Cross multiply
   14,981.16x = 20,667.71 × 9,948.11
4. Step 4: Simplify right side
   14,981.16x = 205,604,499.45
5. Step 5: Solve for x
   x = 205,604,499.45/14,981.16
6. Step 6: Final answer
   x = 13,724.20