Finding the Fourth Proportional to 23,402.96, 32,294.40 and 12,790.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,402.96 : 32,294.40 = 12,790.34 : x
2. Step 2: Convert to fraction form
   23,402.96/32,294.40 = 12,790.34/x
3. Step 3: Cross multiply
   23,402.96x = 32,294.40 × 12,790.34
4. Step 4: Simplify right side
   23,402.96x = 413,056,356.10
5. Step 5: Solve for x
   x = 413,056,356.10/23,402.96
6. Step 6: Final answer
   x = 17,649.75