Finding the Fourth Proportional to 23,820.63, 32,870.10 and 13,752.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,820.63 : 32,870.10 = 13,752.31 : x
2. Step 2: Convert to fraction form
   23,820.63/32,870.10 = 13,752.31/x
3. Step 3: Cross multiply
   23,820.63x = 32,870.10 × 13,752.31
4. Step 4: Simplify right side
   23,820.63x = 452,039,804.93
5. Step 5: Solve for x
   x = 452,039,804.93/23,820.63
6. Step 6: Final answer
   x = 18,976.82