Finding the Fourth Proportional to 89,085.40, 122,948.22 and 51,361

Step by Step Solution

1. Step 1: Write the proportion equation
   89,085.40 : 122,948.22 = 51,361 : x
2. Step 2: Convert to fraction form
   89,085.40/122,948.22 = 51,361/x
3. Step 3: Cross multiply
   89,085.40x = 122,948.22 × 51,361
4. Step 4: Simplify right side
   89,085.40x = 6,314,743,527.42
5. Step 5: Solve for x
   x = 6,314,743,527.42/89,085.40
6. Step 6: Final answer
   x = 70,884.16