Finding the Fourth Proportional to 89,481.61, 123,484.70 and 49,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89,481.61 : 123,484.70 = 49,196.06 : x
2. Step 2: Convert to fraction form
   89,481.61/123,484.70 = 49,196.06/x
3. Step 3: Cross multiply
   89,481.61x = 123,484.70 × 49,196.06
4. Step 4: Simplify right side
   89,481.61x = 6,074,960,678.92
5. Step 5: Solve for x
   x = 6,074,960,678.92/89,481.61
6. Step 6: Final answer
   x = 67,890.60