Finding the Fourth Proportional to 52,210.15, 72,048.17 and 28,336.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,210.15 : 72,048.17 = 28,336.34 : x
2. Step 2: Convert to fraction form
   52,210.15/72,048.17 = 28,336.34/x
3. Step 3: Cross multiply
   52,210.15x = 72,048.17 × 28,336.34
4. Step 4: Simplify right side
   52,210.15x = 2,041,581,441.50
5. Step 5: Solve for x
   x = 2,041,581,441.50/52,210.15
6. Step 6: Final answer
   x = 39,103.16