Finding the Fourth Proportional to 89,438.01, 123,426.60 and 49,155.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,438.01 : 123,426.60 = 49,155.60 : x
2. Step 2: Convert to fraction form
   89,438.01/123,426.60 = 49,155.60/x
3. Step 3: Cross multiply
   89,438.01x = 123,426.60 × 49,155.60
4. Step 4: Simplify right side
   89,438.01x = 6,067,108,333.18
5. Step 5: Solve for x
   x = 6,067,108,333.18/89,438.01
6. Step 6: Final answer
   x = 67,835.90