Finding the Fourth Proportional to 89,063.46, 122,990.82 and 57,287.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,063.46 : 122,990.82 = 57,287.52 : x
2. Step 2: Convert to fraction form
   89,063.46/122,990.82 = 57,287.52/x
3. Step 3: Cross multiply
   89,063.46x = 122,990.82 × 57,287.52
4. Step 4: Simplify right side
   89,063.46x = 7,045,839,060.57
5. Step 5: Solve for x
   x = 7,045,839,060.57/89,063.46
6. Step 6: Final answer
   x = 79,110.32