Finding the Fourth Proportional to 48,867.81, 73,323.59 and 28,091.31

Step by Step Solution

1. Step 1: Write the proportion equation
   48,867.81 : 73,323.59 = 28,091.31 : x
2. Step 2: Convert to fraction form
   48,867.81/73,323.59 = 28,091.31/x
3. Step 3: Cross multiply
   48,867.81x = 73,323.59 × 28,091.31
4. Step 4: Simplify right side
   48,867.81x = 2,059,755,556.55
5. Step 5: Solve for x
   x = 2,059,755,556.55/48,867.81
6. Step 6: Final answer
   x = 42,149.54