Finding the Fourth Proportional to 8,740.02, 13,078.47 and 7,522.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.02 : 13,078.47 = 7,522.12 : x
2. Step 2: Convert to fraction form
   8,740.02/13,078.47 = 7,522.12/x
3. Step 3: Cross multiply
   8,740.02x = 13,078.47 × 7,522.12
4. Step 4: Simplify right side
   8,740.02x = 98,377,820.76
5. Step 5: Solve for x
   x = 98,377,820.76/8,740.02
6. Step 6: Final answer
   x = 11,256.02