Finding the Fourth Proportional to 75,768.30, 113,871.15 and 74,456.10

Step by Step Solution

1. Step 1: Write the proportion equation
   75,768.30 : 113,871.15 = 74,456.10 : x
2. Step 2: Convert to fraction form
   75,768.30/113,871.15 = 74,456.10/x
3. Step 3: Cross multiply
   75,768.30x = 113,871.15 × 74,456.10
4. Step 4: Simplify right side
   75,768.30x = 8,478,401,731.52
5. Step 5: Solve for x
   x = 8,478,401,731.52/75,768.30
6. Step 6: Final answer
   x = 111,899.06