Finding the Fourth Proportional to 78,119.07, 107,803.71 and 42,308.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,119.07 : 107,803.71 = 42,308.25 : x
2. Step 2: Convert to fraction form
   78,119.07/107,803.71 = 42,308.25/x
3. Step 3: Cross multiply
   78,119.07x = 107,803.71 × 42,308.25
4. Step 4: Simplify right side
   78,119.07x = 4,560,986,313.61
5. Step 5: Solve for x
   x = 4,560,986,313.61/78,119.07
6. Step 6: Final answer
   x = 58,385.06