Finding the Fourth Proportional to 89,328.12, 123,274.10 and 49,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,328.12 : 123,274.10 = 49,045.50 : x
2. Step 2: Convert to fraction form
   89,328.12/123,274.10 = 49,045.50/x
3. Step 3: Cross multiply
   89,328.12x = 123,274.10 × 49,045.50
4. Step 4: Simplify right side
   89,328.12x = 6,046,039,994.16
5. Step 5: Solve for x
   x = 6,046,039,994.16/89,328.12
6. Step 6: Final answer
   x = 67,683.50