Finding the Fourth Proportional to 77,003.60, 106,235.69 and 48,311.10

Step by Step Solution

1. Step 1: Write the proportion equation
   77,003.60 : 106,235.69 = 48,311.10 : x
2. Step 2: Convert to fraction form
   77,003.60/106,235.69 = 48,311.10/x
3. Step 3: Cross multiply
   77,003.60x = 106,235.69 × 48,311.10
4. Step 4: Simplify right side
   77,003.60x = 5,132,362,801.60
5. Step 5: Solve for x
   x = 5,132,362,801.60/77,003.60
6. Step 6: Final answer
   x = 66,650.95