Finding the Fourth Proportional to 83,436.72, 125,153.64 and 28,032.72

Step by Step Solution

1. Step 1: Write the proportion equation
   83,436.72 : 125,153.64 = 28,032.72 : x
2. Step 2: Convert to fraction form
   83,436.72/125,153.64 = 28,032.72/x
3. Step 3: Cross multiply
   83,436.72x = 125,153.64 × 28,032.72
4. Step 4: Simplify right side
   83,436.72x = 3,508,396,947.10
5. Step 5: Solve for x
   x = 3,508,396,947.10/83,436.72
6. Step 6: Final answer
   x = 42,048.60