Finding the Fourth Proportional to 51,646.50, 71,272.17 and 29,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,646.50 : 71,272.17 = 29,290.50 : x
2. Step 2: Convert to fraction form
   51,646.50/71,272.17 = 29,290.50/x
3. Step 3: Cross multiply
   51,646.50x = 71,272.17 × 29,290.50
4. Step 4: Simplify right side
   51,646.50x = 2,087,597,495.39
5. Step 5: Solve for x
   x = 2,087,597,495.39/51,646.50
6. Step 6: Final answer
   x = 40,420.89