Finding the Fourth Proportional to 8,109.78, 12,101.16 and 7,060.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.78 : 12,101.16 = 7,060.02 : x
2. Step 2: Convert to fraction form
   8,109.78/12,101.16 = 7,060.02/x
3. Step 3: Cross multiply
   8,109.78x = 12,101.16 × 7,060.02
4. Step 4: Simplify right side
   8,109.78x = 85,434,431.62
5. Step 5: Solve for x
   x = 85,434,431.62/8,109.78
6. Step 6: Final answer
   x = 10,534.74