Finding the Fourth Proportional to 80,890.02, 111,595.86 and 49,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   80,890.02 : 111,595.86 = 49,047.30 : x
2. Step 2: Convert to fraction form
   80,890.02/111,595.86 = 49,047.30/x
3. Step 3: Cross multiply
   80,890.02x = 111,595.86 × 49,047.30
4. Step 4: Simplify right side
   80,890.02x = 5,473,475,624.18
5. Step 5: Solve for x
   x = 5,473,475,624.18/80,890.02
6. Step 6: Final answer
   x = 67,665.65