Finding the Fourth Proportional to 89,478.25, 123,476.84 and 49,191.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,478.25 : 123,476.84 = 49,191.72 : x
2. Step 2: Convert to fraction form
   89,478.25/123,476.84 = 49,191.72/x
3. Step 3: Cross multiply
   89,478.25x = 123,476.84 × 49,191.72
4. Step 4: Simplify right side
   89,478.25x = 6,074,038,016.79
5. Step 5: Solve for x
   x = 6,074,038,016.79/89,478.25
6. Step 6: Final answer
   x = 67,882.84