Finding the Fourth Proportional to 89,111.71, 122,974.12 and 53,310.13

Step by Step Solution

1. Step 1: Write the proportion equation
   89,111.71 : 122,974.12 = 53,310.13 : x
2. Step 2: Convert to fraction form
   89,111.71/122,974.12 = 53,310.13/x
3. Step 3: Cross multiply
   89,111.71x = 122,974.12 × 53,310.13
4. Step 4: Simplify right side
   89,111.71x = 6,555,766,323.84
5. Step 5: Solve for x
   x = 6,555,766,323.84/89,111.71
6. Step 6: Final answer
   x = 73,567.96