Finding the Fourth Proportional to 78,061.14, 107,725.16 and 42,251.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,061.14 : 107,725.16 = 42,251.91 : x
2. Step 2: Convert to fraction form
   78,061.14/107,725.16 = 42,251.91/x
3. Step 3: Cross multiply
   78,061.14x = 107,725.16 × 42,251.91
4. Step 4: Simplify right side
   78,061.14x = 4,551,593,553.80
5. Step 5: Solve for x
   x = 4,551,593,553.80/78,061.14
6. Step 6: Final answer
   x = 58,308.06