Finding the Fourth Proportional to 52,851.34, 72,935.85 and 28,976.59

Step by Step Solution

1. Step 1: Write the proportion equation
   52,851.34 : 72,935.85 = 28,976.59 : x
2. Step 2: Convert to fraction form
   52,851.34/72,935.85 = 28,976.59/x
3. Step 3: Cross multiply
   52,851.34x = 72,935.85 × 28,976.59
4. Step 4: Simplify right side
   52,851.34x = 2,113,432,221.75
5. Step 5: Solve for x
   x = 2,113,432,221.75/52,851.34
6. Step 6: Final answer
   x = 39,988.24