Finding the Fourth Proportional to 23,865.81, 32,931.16 and 13,792.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,865.81 : 32,931.16 = 13,792.31 : x
2. Step 2: Convert to fraction form
   23,865.81/32,931.16 = 13,792.31/x
3. Step 3: Cross multiply
   23,865.81x = 32,931.16 × 13,792.31
4. Step 4: Simplify right side
   23,865.81x = 454,196,769.32
5. Step 5: Solve for x
   x = 454,196,769.32/23,865.81
6. Step 6: Final answer
   x = 19,031.27