Finding the Fourth Proportional to 89,428.08, 123,410.16 and 49,142.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,428.08 : 123,410.16 = 49,142.28 : x
2. Step 2: Convert to fraction form
   89,428.08/123,410.16 = 49,142.28/x
3. Step 3: Cross multiply
   89,428.08x = 123,410.16 × 49,142.28
4. Step 4: Simplify right side
   89,428.08x = 6,064,656,637.56
5. Step 5: Solve for x
   x = 6,064,656,637.56/89,428.08
6. Step 6: Final answer
   x = 67,816.02