Finding the Fourth Proportional to 8,060.31, 12,068.60 and 7,404.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,060.31 : 12,068.60 = 7,404.21 : x
2. Step 2: Convert to fraction form
   8,060.31/12,068.60 = 7,404.21/x
3. Step 3: Cross multiply
   8,060.31x = 12,068.60 × 7,404.21
4. Step 4: Simplify right side
   8,060.31x = 89,358,411.78
5. Step 5: Solve for x
   x = 89,358,411.78/8,060.31
6. Step 6: Final answer
   x = 11,086.23