Finding the Fourth Proportional to 32,091.72, 48,146.64 and 28,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   32,091.72 : 48,146.64 = 28,105.86 : x
2. Step 2: Convert to fraction form
   32,091.72/48,146.64 = 28,105.86/x
3. Step 3: Cross multiply
   32,091.72x = 48,146.64 × 28,105.86
4. Step 4: Simplify right side
   32,091.72x = 1,353,202,723.31
5. Step 5: Solve for x
   x = 1,353,202,723.31/32,091.72
6. Step 6: Final answer
   x = 42,166.72