Finding the Fourth Proportional to 64,794.72, 89,446.73 and 45,690.06

Step by Step Solution

1. Step 1: Write the proportion equation
   64,794.72 : 89,446.73 = 45,690.06 : x
2. Step 2: Convert to fraction form
   64,794.72/89,446.73 = 45,690.06/x
3. Step 3: Cross multiply
   64,794.72x = 89,446.73 × 45,690.06
4. Step 4: Simplify right side
   64,794.72x = 4,086,826,460.50
5. Step 5: Solve for x
   x = 4,086,826,460.50/64,794.72
6. Step 6: Final answer
   x = 63,073.45