Finding the Fourth Proportional to 9,307.34, 12,845.02 and 5,116.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,307.34 : 12,845.02 = 5,116.40 : x
2. Step 2: Convert to fraction form
   9,307.34/12,845.02 = 5,116.40/x
3. Step 3: Cross multiply
   9,307.34x = 12,845.02 × 5,116.40
4. Step 4: Simplify right side
   9,307.34x = 65,720,260.33
5. Step 5: Solve for x
   x = 65,720,260.33/9,307.34
6. Step 6: Final answer
   x = 7,061.12