Finding the Fourth Proportional to 52,597.55, 72,581.74 and 28,719.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,597.55 : 72,581.74 = 28,719.56 : x
2. Step 2: Convert to fraction form
   52,597.55/72,581.74 = 28,719.56/x
3. Step 3: Cross multiply
   52,597.55x = 72,581.74 × 28,719.56
4. Step 4: Simplify right side
   52,597.55x = 2,084,515,746.49
5. Step 5: Solve for x
   x = 2,084,515,746.49/52,597.55
6. Step 6: Final answer
   x = 39,631.42