Finding the Fourth Proportional to 13,116.52, 18,100.27 and 7,148.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,116.52 : 18,100.27 = 7,148.06 : x
2. Step 2: Convert to fraction form
   13,116.52/18,100.27 = 7,148.06/x
3. Step 3: Cross multiply
   13,116.52x = 18,100.27 × 7,148.06
4. Step 4: Simplify right side
   13,116.52x = 129,381,802.29
5. Step 5: Solve for x
   x = 129,381,802.29/13,116.52
6. Step 6: Final answer
   x = 9,864.03