Finding the Fourth Proportional to 9,326.96, 12,870.42 and 5,347.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,326.96 : 12,870.42 = 5,347.16 : x
2. Step 2: Convert to fraction form
   9,326.96/12,870.42 = 5,347.16/x
3. Step 3: Cross multiply
   9,326.96x = 12,870.42 × 5,347.16
4. Step 4: Simplify right side
   9,326.96x = 68,820,195.01
5. Step 5: Solve for x
   x = 68,820,195.01/9,326.96
6. Step 6: Final answer
   x = 7,378.63