Finding the Fourth Proportional to 146,738.75, 220,139.69 and 45,534.69

Step by Step Solution

1. Step 1: Write the proportion equation
   146,738.75 : 220,139.69 = 45,534.69 : x
2. Step 2: Convert to fraction form
   146,738.75/220,139.69 = 45,534.69/x
3. Step 3: Cross multiply
   146,738.75x = 220,139.69 × 45,534.69
4. Step 4: Simplify right side
   146,738.75x = 10,023,992,313.17
5. Step 5: Solve for x
   x = 10,023,992,313.17/146,738.75
6. Step 6: Final answer
   x = 68,311.83