Finding the Fourth Proportional to 89,403.36, 123,376.50 and 49,118.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,403.36 : 123,376.50 = 49,118.16 : x
2. Step 2: Convert to fraction form
   89,403.36/123,376.50 = 49,118.16/x
3. Step 3: Cross multiply
   89,403.36x = 123,376.50 × 49,118.16
4. Step 4: Simplify right side
   89,403.36x = 6,060,026,667.24
5. Step 5: Solve for x
   x = 6,060,026,667.24/89,403.36
6. Step 6: Final answer
   x = 67,782.99