Finding the Fourth Proportional to 52,429.01, 72,349.61 and 28,555.67

Step by Step Solution

1. Step 1: Write the proportion equation
   52,429.01 : 72,349.61 = 28,555.67 : x
2. Step 2: Convert to fraction form
   52,429.01/72,349.61 = 28,555.67/x
3. Step 3: Cross multiply
   52,429.01x = 72,349.61 × 28,555.67
4. Step 4: Simplify right side
   52,429.01x = 2,065,991,625.88
5. Step 5: Solve for x
   x = 2,065,991,625.88/52,429.01
6. Step 6: Final answer
   x = 39,405.51