Finding the Fourth Proportional to 12,943.02, 17,863.30 and 7,910.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943.02 : 17,863.30 = 7,910.16 : x
2. Step 2: Convert to fraction form
   12,943.02/17,863.30 = 7,910.16/x
3. Step 3: Cross multiply
   12,943.02x = 17,863.30 × 7,910.16
4. Step 4: Simplify right side
   12,943.02x = 141,301,561.13
5. Step 5: Solve for x
   x = 141,301,561.13/12,943.02
6. Step 6: Final answer
   x = 10,917.20