Finding the Fourth Proportional to 9,981.18, 14,981.03 and 5,054.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.18 : 14,981.03 = 5,054.31 : x
2. Step 2: Convert to fraction form
   9,981.18/14,981.03 = 5,054.31/x
3. Step 3: Cross multiply
   9,981.18x = 14,981.03 × 5,054.31
4. Step 4: Simplify right side
   9,981.18x = 75,718,769.74
5. Step 5: Solve for x
   x = 75,718,769.74/9,981.18
6. Step 6: Final answer
   x = 7,586.15