Finding the Fourth Proportional to 81,667.08, 122,468.94 and 31,740.57

Step by Step Solution

1. Step 1: Write the proportion equation
   81,667.08 : 122,468.94 = 31,740.57 : x
2. Step 2: Convert to fraction form
   81,667.08/122,468.94 = 31,740.57/x
3. Step 3: Cross multiply
   81,667.08x = 122,468.94 × 31,740.57
4. Step 4: Simplify right side
   81,667.08x = 3,887,233,962.90
5. Step 5: Solve for x
   x = 3,887,233,962.90/81,667.08
6. Step 6: Final answer
   x = 47,598.54