Finding the Fourth Proportional to 78,747.04, 108,670.66 and 42,936.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,747.04 : 108,670.66 = 42,936.96 : x
2. Step 2: Convert to fraction form
   78,747.04/108,670.66 = 42,936.96/x
3. Step 3: Cross multiply
   78,747.04x = 108,670.66 × 42,936.96
4. Step 4: Simplify right side
   78,747.04x = 4,665,988,017.65
5. Step 5: Solve for x
   x = 4,665,988,017.65/78,747.04
6. Step 6: Final answer
   x = 59,252.87