Finding the Fourth Proportional to 52,212.16, 72,053.02 and 28,338.83

Step by Step Solution

1. Step 1: Write the proportion equation
   52,212.16 : 72,053.02 = 28,338.83 : x
2. Step 2: Convert to fraction form
   52,212.16/72,053.02 = 28,338.83/x
3. Step 3: Cross multiply
   52,212.16x = 72,053.02 × 28,338.83
4. Step 4: Simplify right side
   52,212.16x = 2,041,898,284.77
5. Step 5: Solve for x
   x = 2,041,898,284.77/52,212.16
6. Step 6: Final answer
   x = 39,107.72