Finding the Fourth Proportional to 140,561.22, 210,706.52 and 51,766.29

Step by Step Solution

1. Step 1: Write the proportion equation
   140,561.22 : 210,706.52 = 51,766.29 : x
2. Step 2: Convert to fraction form
   140,561.22/210,706.52 = 51,766.29/x
3. Step 3: Cross multiply
   140,561.22x = 210,706.52 × 51,766.29
4. Step 4: Simplify right side
   140,561.22x = 10,907,494,560.38
5. Step 5: Solve for x
   x = 10,907,494,560.38/140,561.22
6. Step 6: Final answer
   x = 77,599.60