Finding the Fourth Proportional to 52,279.69, 72,146.27 and 28,406.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,279.69 : 72,146.27 = 28,406.56 : x
2. Step 2: Convert to fraction form
   52,279.69/72,146.27 = 28,406.56/x
3. Step 3: Cross multiply
   52,279.69x = 72,146.27 × 28,406.56
4. Step 4: Simplify right side
   52,279.69x = 2,049,427,205.50
5. Step 5: Solve for x
   x = 2,049,427,205.50/52,279.69
6. Step 6: Final answer
   x = 39,201.21