Finding the Fourth Proportional to 78,746.52, 108,669.78 and 42,936.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,746.52 : 108,669.78 = 42,936.42 : x
2. Step 2: Convert to fraction form
   78,746.52/108,669.78 = 42,936.42/x
3. Step 3: Cross multiply
   78,746.52x = 108,669.78 × 42,936.42
4. Step 4: Simplify right side
   78,746.52x = 4,665,891,315.39
5. Step 5: Solve for x
   x = 4,665,891,315.39/78,746.52
6. Step 6: Final answer
   x = 59,252.03