Finding the Fourth Proportional to 89,347.30, 123,121.56 and 63,781.54

Step by Step Solution

1. Step 1: Write the proportion equation
   89,347.30 : 123,121.56 = 63,781.54 : x
2. Step 2: Convert to fraction form
   89,347.30/123,121.56 = 63,781.54/x
3. Step 3: Cross multiply
   89,347.30x = 123,121.56 × 63,781.54
4. Step 4: Simplify right side
   89,347.30x = 7,852,882,704.00
5. Step 5: Solve for x
   x = 7,852,882,704.00/89,347.30
6. Step 6: Final answer
   x = 87,891.66