Finding the Fourth Proportional to 52,302.86, 72,178.43 and 28,429.59

Step by Step Solution

1. Step 1: Write the proportion equation
   52,302.86 : 72,178.43 = 28,429.59 : x
2. Step 2: Convert to fraction form
   52,302.86/72,178.43 = 28,429.59/x
3. Step 3: Cross multiply
   52,302.86x = 72,178.43 × 28,429.59
4. Step 4: Simplify right side
   52,302.86x = 2,052,003,171.74
5. Step 5: Solve for x
   x = 2,052,003,171.74/52,302.86
6. Step 6: Final answer
   x = 39,233.10