Finding the Fourth Proportional to 23,761.61, 32,788.56 and 13,688.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,761.61 : 32,788.56 = 13,688.04 : x
2. Step 2: Convert to fraction form
   23,761.61/32,788.56 = 13,688.04/x
3. Step 3: Cross multiply
   23,761.61x = 32,788.56 × 13,688.04
4. Step 4: Simplify right side
   23,761.61x = 448,811,120.82
5. Step 5: Solve for x
   x = 448,811,120.82/23,761.61
6. Step 6: Final answer
   x = 18,888.08