Finding the Fourth Proportional to 89,389.32, 123,343.56 and 51,656.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,389.32 : 123,343.56 = 51,656.28 : x
2. Step 2: Convert to fraction form
   89,389.32/123,343.56 = 51,656.28/x
3. Step 3: Cross multiply
   89,389.32x = 123,343.56 × 51,656.28
4. Step 4: Simplify right side
   89,389.32x = 6,371,469,471.56
5. Step 5: Solve for x
   x = 6,371,469,471.56/89,389.32
6. Step 6: Final answer
   x = 71,277.75