Finding the Fourth Proportional to 52,302.88, 72,178.42 and 28,429.60

Step by Step Solution

1. Step 1: Write the proportion equation
   52,302.88 : 72,178.42 = 28,429.60 : x
2. Step 2: Convert to fraction form
   52,302.88/72,178.42 = 28,429.60/x
3. Step 3: Cross multiply
   52,302.88x = 72,178.42 × 28,429.60
4. Step 4: Simplify right side
   52,302.88x = 2,052,003,609.23
5. Step 5: Solve for x
   x = 2,052,003,609.23/52,302.88
6. Step 6: Final answer
   x = 39,233.09