Finding the Fourth Proportional to 32,890.24, 45,389.76 and 18,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32,890.24 : 45,389.76 = 18,742.72 : x
2. Step 2: Convert to fraction form
   32,890.24/45,389.76 = 18,742.72/x
3. Step 3: Cross multiply
   32,890.24x = 45,389.76 × 18,742.72
4. Step 4: Simplify right side
   32,890.24x = 850,727,562.55
5. Step 5: Solve for x
   x = 850,727,562.55/32,890.24
6. Step 6: Final answer
   x = 25,865.65