Finding the Fourth Proportional to 9,312.83, 12,851.96 and 5,064.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,312.83 : 12,851.96 = 5,064.18 : x
2. Step 2: Convert to fraction form
   9,312.83/12,851.96 = 5,064.18/x
3. Step 3: Cross multiply
   9,312.83x = 12,851.96 × 5,064.18
4. Step 4: Simplify right side
   9,312.83x = 65,084,638.79
5. Step 5: Solve for x
   x = 65,084,638.79/9,312.83
6. Step 6: Final answer
   x = 6,988.71