Finding the Fourth Proportional to 52,176.78, 72,003.40 and 28,303.25

Step by Step Solution

1. Step 1: Write the proportion equation
   52,176.78 : 72,003.40 = 28,303.25 : x
2. Step 2: Convert to fraction form
   52,176.78/72,003.40 = 28,303.25/x
3. Step 3: Cross multiply
   52,176.78x = 72,003.40 × 28,303.25
4. Step 4: Simplify right side
   52,176.78x = 2,037,929,800.27
5. Step 5: Solve for x
   x = 2,037,929,800.27/52,176.78
6. Step 6: Final answer
   x = 39,058.17