Finding the Fourth Proportional to 58,447.20, 80,658.72 and 35,785.76

Step by Step Solution

1. Step 1: Write the proportion equation
   58,447.20 : 80,658.72 = 35,785.76 : x
2. Step 2: Convert to fraction form
   58,447.20/80,658.72 = 35,785.76/x
3. Step 3: Cross multiply
   58,447.20x = 80,658.72 × 35,785.76
4. Step 4: Simplify right side
   58,447.20x = 2,886,433,595.83
5. Step 5: Solve for x
   x = 2,886,433,595.83/58,447.20
6. Step 6: Final answer
   x = 49,385.32