Finding the Fourth Proportional to 52,491.50, 72,439.27 and 28,619.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,491.50 : 72,439.27 = 28,619.18 : x
2. Step 2: Convert to fraction form
   52,491.50/72,439.27 = 28,619.18/x
3. Step 3: Cross multiply
   52,491.50x = 72,439.27 × 28,619.18
4. Step 4: Simplify right side
   52,491.50x = 2,073,152,073.45
5. Step 5: Solve for x
   x = 2,073,152,073.45/52,491.50
6. Step 6: Final answer
   x = 39,495.01