Finding the Fourth Proportional to 52,330.08, 72,215.68 and 28,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,330.08 : 72,215.68 = 28,456.72 : x
2. Step 2: Convert to fraction form
   52,330.08/72,215.68 = 28,456.72/x
3. Step 3: Cross multiply
   52,330.08x = 72,215.68 × 28,456.72
4. Step 4: Simplify right side
   52,330.08x = 2,055,021,385.37
5. Step 5: Solve for x
   x = 2,055,021,385.37/52,330.08
6. Step 6: Final answer
   x = 39,270.37