Finding the Fourth Proportional to 264,631.52, 396,947.59 and 72,507.57

Step by Step Solution

1. Step 1: Write the proportion equation
   264,631.52 : 396,947.59 = 72,507.57 : x
2. Step 2: Convert to fraction form
   264,631.52/396,947.59 = 72,507.57/x
3. Step 3: Cross multiply
   264,631.52x = 396,947.59 × 72,507.57
4. Step 4: Simplify right side
   264,631.52x = 28,781,704,805.72
5. Step 5: Solve for x
   x = 28,781,704,805.72/264,631.52
6. Step 6: Final answer
   x = 108,761.44