Finding the Fourth Proportional to 13,152.56, 18,149.80 and 7,488.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.56 : 18,149.80 = 7,488.69 : x
2. Step 2: Convert to fraction form
   13,152.56/18,149.80 = 7,488.69/x
3. Step 3: Cross multiply
   13,152.56x = 18,149.80 × 7,488.69
4. Step 4: Simplify right side
   13,152.56x = 135,918,188.32
5. Step 5: Solve for x
   x = 135,918,188.32/13,152.56
6. Step 6: Final answer
   x = 10,333.97