Finding the Fourth Proportional to 8,748.36, 12,081.30 and 7,482.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.36 : 12,081.30 = 7,482.12 : x
2. Step 2: Convert to fraction form
   8,748.36/12,081.30 = 7,482.12/x
3. Step 3: Cross multiply
   8,748.36x = 12,081.30 × 7,482.12
4. Step 4: Simplify right side
   8,748.36x = 90,393,736.36
5. Step 5: Solve for x
   x = 90,393,736.36/8,748.36
6. Step 6: Final answer
   x = 10,332.65