Finding the Fourth Proportional to 52,091.55, 71,886.52 and 28,218.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,091.55 : 71,886.52 = 28,218.15 : x
2. Step 2: Convert to fraction form
   52,091.55/71,886.52 = 28,218.15/x
3. Step 3: Cross multiply
   52,091.55x = 71,886.52 × 28,218.15
4. Step 4: Simplify right side
   52,091.55x = 2,028,504,463.25
5. Step 5: Solve for x
   x = 2,028,504,463.25/52,091.55
6. Step 6: Final answer
   x = 38,941.14