Finding the Fourth Proportional to 52,319, 72,200.76 and 28,445.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,319 : 72,200.76 = 28,445.96 : x
2. Step 2: Convert to fraction form
   52,319/72,200.76 = 28,445.96/x
3. Step 3: Cross multiply
   52,319x = 72,200.76 × 28,445.96
4. Step 4: Simplify right side
   52,319x = 2,053,819,930.93
5. Step 5: Solve for x
   x = 2,053,819,930.93/52,319
6. Step 6: Final answer
   x = 39,255.72