Finding the Fourth Proportional to 12,711.68, 19,061.02 and 5,314.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,711.68 : 19,061.02 = 5,314.12 : x
2. Step 2: Convert to fraction form
   12,711.68/19,061.02 = 5,314.12/x
3. Step 3: Cross multiply
   12,711.68x = 19,061.02 × 5,314.12
4. Step 4: Simplify right side
   12,711.68x = 101,292,547.60
5. Step 5: Solve for x
   x = 101,292,547.60/12,711.68
6. Step 6: Final answer
   x = 7,968.46