Finding the Fourth Proportional to 81,433.89, 112,375.65 and 45,622.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,433.89 : 112,375.65 = 45,622.10 : x
2. Step 2: Convert to fraction form
   81,433.89/112,375.65 = 45,622.10/x
3. Step 3: Cross multiply
   81,433.89x = 112,375.65 × 45,622.10
4. Step 4: Simplify right side
   81,433.89x = 5,126,813,593.89
5. Step 5: Solve for x
   x = 5,126,813,593.89/81,433.89
6. Step 6: Final answer
   x = 62,956.76