Finding the Fourth Proportional to 78,444.50, 108,252.75 and 42,634.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,444.50 : 108,252.75 = 42,634.72 : x
2. Step 2: Convert to fraction form
   78,444.50/108,252.75 = 42,634.72/x
3. Step 3: Cross multiply
   78,444.50x = 108,252.75 × 42,634.72
4. Step 4: Simplify right side
   78,444.50x = 4,615,325,414.85
5. Step 5: Solve for x
   x = 4,615,325,414.85/78,444.50
6. Step 6: Final answer
   x = 58,835.56