Finding the Fourth Proportional to 81,626.33, 112,638.15 and 45,809.42

Step by Step Solution

1. Step 1: Write the proportion equation
   81,626.33 : 112,638.15 = 45,809.42 : x
2. Step 2: Convert to fraction form
   81,626.33/112,638.15 = 45,809.42/x
3. Step 3: Cross multiply
   81,626.33x = 112,638.15 × 45,809.42
4. Step 4: Simplify right side
   81,626.33x = 5,159,888,211.56
5. Step 5: Solve for x
   x = 5,159,888,211.56/81,626.33
6. Step 6: Final answer
   x = 63,213.53