Finding the Fourth Proportional to 73,619.62, 110,211.27 and 45,449.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73,619.62 : 110,211.27 = 45,449.10 : x
2. Step 2: Convert to fraction form
   73,619.62/110,211.27 = 45,449.10/x
3. Step 3: Cross multiply
   73,619.62x = 110,211.27 × 45,449.10
4. Step 4: Simplify right side
   73,619.62x = 5,009,002,480.30
5. Step 5: Solve for x
   x = 5,009,002,480.30/73,619.62
6. Step 6: Final answer
   x = 68,038.96