Finding the Fourth Proportional to 52,303.10, 72,178.36 and 28,429.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,303.10 : 72,178.36 = 28,429.72 : x
2. Step 2: Convert to fraction form
   52,303.10/72,178.36 = 28,429.72/x
3. Step 3: Cross multiply
   52,303.10x = 72,178.36 × 28,429.72
4. Step 4: Simplify right side
   52,303.10x = 2,052,010,564.86
5. Step 5: Solve for x
   x = 2,052,010,564.86/52,303.10
6. Step 6: Final answer
   x = 39,233.06