Finding the Fourth Proportional to 77,100.72, 106,353 and 48,757.20

Step by Step Solution

1. Step 1: Write the proportion equation
   77,100.72 : 106,353 = 48,757.20 : x
2. Step 2: Convert to fraction form
   77,100.72/106,353 = 48,757.20/x
3. Step 3: Cross multiply
   77,100.72x = 106,353 × 48,757.20
4. Step 4: Simplify right side
   77,100.72x = 5,185,474,491.60
5. Step 5: Solve for x
   x = 5,185,474,491.60/77,100.72
6. Step 6: Final answer
   x = 67,255.85