Finding the Fourth Proportional to 81,647.88, 122,459.58 and 38,942.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,647.88 : 122,459.58 = 38,942.52 : x
2. Step 2: Convert to fraction form
   81,647.88/122,459.58 = 38,942.52/x
3. Step 3: Cross multiply
   81,647.88x = 122,459.58 × 38,942.52
4. Step 4: Simplify right side
   81,647.88x = 4,768,884,643.34
5. Step 5: Solve for x
   x = 4,768,884,643.34/81,647.88
6. Step 6: Final answer
   x = 58,407.94