Finding the Fourth Proportional to 13,152.18, 18,150.42 and 7,184.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.18 : 18,150.42 = 7,184.40 : x
2. Step 2: Convert to fraction form
   13,152.18/18,150.42 = 7,184.40/x
3. Step 3: Cross multiply
   13,152.18x = 18,150.42 × 7,184.40
4. Step 4: Simplify right side
   13,152.18x = 130,399,877.45
5. Step 5: Solve for x
   x = 130,399,877.45/13,152.18
6. Step 6: Final answer
   x = 9,914.70