Finding the Fourth Proportional to 23,710.72, 32,720.32 and 13,100.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,710.72 : 32,720.32 = 13,100.16 : x
2. Step 2: Convert to fraction form
   23,710.72/32,720.32 = 13,100.16/x
3. Step 3: Cross multiply
   23,710.72x = 32,720.32 × 13,100.16
4. Step 4: Simplify right side
   23,710.72x = 428,641,427.25
5. Step 5: Solve for x
   x = 428,641,427.25/23,710.72
6. Step 6: Final answer
   x = 18,077.96