Finding the Fourth Proportional to 89,235.61, 123,128.10 and 51,007.27

Step by Step Solution

1. Step 1: Write the proportion equation
   89,235.61 : 123,128.10 = 51,007.27 : x
2. Step 2: Convert to fraction form
   89,235.61/123,128.10 = 51,007.27/x
3. Step 3: Cross multiply
   89,235.61x = 123,128.10 × 51,007.27
4. Step 4: Simplify right side
   89,235.61x = 6,280,428,241.29
5. Step 5: Solve for x
   x = 6,280,428,241.29/89,235.61
6. Step 6: Final answer
   x = 70,380.29