Finding the Fourth Proportional to 89,468.40, 123,455.79 and 49,175.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,468.40 : 123,455.79 = 49,175.58 : x
2. Step 2: Convert to fraction form
   89,468.40/123,455.79 = 49,175.58/x
3. Step 3: Cross multiply
   89,468.40x = 123,455.79 × 49,175.58
4. Step 4: Simplify right side
   89,468.40x = 6,071,010,077.61
5. Step 5: Solve for x
   x = 6,071,010,077.61/89,468.40
6. Step 6: Final answer
   x = 67,856.47