Finding the Fourth Proportional to 12,981.47, 19,476.72 and 4,098.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,981.47 : 19,476.72 = 4,098.17 : x
2. Step 2: Convert to fraction form
   12,981.47/19,476.72 = 4,098.17/x
3. Step 3: Cross multiply
   12,981.47x = 19,476.72 × 4,098.17
4. Step 4: Simplify right side
   12,981.47x = 79,818,909.60
5. Step 5: Solve for x
   x = 79,818,909.60/12,981.47
6. Step 6: Final answer
   x = 6,148.68