Finding the Fourth Proportional to 78,947.02, 108,946.91 and 42,648.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,947.02 : 108,946.91 = 42,648.48 : x
2. Step 2: Convert to fraction form
   78,947.02/108,946.91 = 42,648.48/x
3. Step 3: Cross multiply
   78,947.02x = 108,946.91 × 42,648.48
4. Step 4: Simplify right side
   78,947.02x = 4,646,420,218.82
5. Step 5: Solve for x
   x = 4,646,420,218.82/78,947.02
6. Step 6: Final answer
   x = 58,854.92