Finding the Fourth Proportional to 13,113.55, 18,095.98 and 7,448.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,113.55 : 18,095.98 = 7,448.16 : x
2. Step 2: Convert to fraction form
   13,113.55/18,095.98 = 7,448.16/x
3. Step 3: Cross multiply
   13,113.55x = 18,095.98 × 7,448.16
4. Step 4: Simplify right side
   13,113.55x = 134,781,754.40
5. Step 5: Solve for x
   x = 134,781,754.40/13,113.55
6. Step 6: Final answer
   x = 10,278.05