Finding the Fourth Proportional to 81,958.56, 122,913.54 and 35,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,958.56 : 122,913.54 = 35,200.50 : x
2. Step 2: Convert to fraction form
   81,958.56/122,913.54 = 35,200.50/x
3. Step 3: Cross multiply
   81,958.56x = 122,913.54 × 35,200.50
4. Step 4: Simplify right side
   81,958.56x = 4,326,618,064.77
5. Step 5: Solve for x
   x = 4,326,618,064.77/81,958.56
6. Step 6: Final answer
   x = 52,790.31