Finding the Fourth Proportional to 89,426.86, 123,409.65 and 49,143.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89,426.86 : 123,409.65 = 49,143.94 : x
2. Step 2: Convert to fraction form
   89,426.86/123,409.65 = 49,143.94/x
3. Step 3: Cross multiply
   89,426.86x = 123,409.65 × 49,143.94
4. Step 4: Simplify right side
   89,426.86x = 6,064,836,435.02
5. Step 5: Solve for x
   x = 6,064,836,435.02/89,426.86
6. Step 6: Final answer
   x = 67,818.96