Finding the Fourth Proportional to 23,111.15, 34,669.16 and 7,318.36

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.15 : 34,669.16 = 7,318.36 : x
2. Step 2: Convert to fraction form
   23,111.15/34,669.16 = 7,318.36/x
3. Step 3: Cross multiply
   23,111.15x = 34,669.16 × 7,318.36
4. Step 4: Simplify right side
   23,111.15x = 253,721,393.78
5. Step 5: Solve for x
   x = 253,721,393.78/23,111.15
6. Step 6: Final answer
   x = 10,978.31