Finding the Fourth Proportional to 81,923.08, 122,788.72 and 31,288.92

Step by Step Solution

1. Step 1: Write the proportion equation
   81,923.08 : 122,788.72 = 31,288.92 : x
2. Step 2: Convert to fraction form
   81,923.08/122,788.72 = 31,288.92/x
3. Step 3: Cross multiply
   81,923.08x = 122,788.72 × 31,288.92
4. Step 4: Simplify right side
   81,923.08x = 3,841,926,436.98
5. Step 5: Solve for x
   x = 3,841,926,436.98/81,923.08
6. Step 6: Final answer
   x = 46,896.75