Finding the Fourth Proportional to 81,925.30, 122,961.18 and 41,971.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,925.30 : 122,961.18 = 41,971.50 : x
2. Step 2: Convert to fraction form
   81,925.30/122,961.18 = 41,971.50/x
3. Step 3: Cross multiply
   81,925.30x = 122,961.18 × 41,971.50
4. Step 4: Simplify right side
   81,925.30x = 5,160,865,049.14
5. Step 5: Solve for x
   x = 5,160,865,049.14/81,925.30
6. Step 6: Final answer
   x = 62,994.77