Finding the Fourth Proportional to 23,111.31, 34,660.44 and 7,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.31 : 34,660.44 = 7,317.57 : x
2. Step 2: Convert to fraction form
   23,111.31/34,660.44 = 7,317.57/x
3. Step 3: Cross multiply
   23,111.31x = 34,660.44 × 7,317.57
4. Step 4: Simplify right side
   23,111.31x = 253,630,195.93
5. Step 5: Solve for x
   x = 253,630,195.93/23,111.31
6. Step 6: Final answer
   x = 10,974.29