Finding the Fourth Proportional to 78,076.08, 107,745.24 and 42,266.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,076.08 : 107,745.24 = 42,266.39 : x
2. Step 2: Convert to fraction form
   78,076.08/107,745.24 = 42,266.39/x
3. Step 3: Cross multiply
   78,076.08x = 107,745.24 × 42,266.39
4. Step 4: Simplify right side
   78,076.08x = 4,554,001,795.76
5. Step 5: Solve for x
   x = 4,554,001,795.76/78,076.08
6. Step 6: Final answer
   x = 58,327.75