Finding the Fourth Proportional to 111,648.02, 154,065.33 and 63,890.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,648.02 : 154,065.33 = 63,890.42 : x
2. Step 2: Convert to fraction form
   111,648.02/154,065.33 = 63,890.42/x
3. Step 3: Cross multiply
   111,648.02x = 154,065.33 × 63,890.42
4. Step 4: Simplify right side
   111,648.02x = 9,843,298,641.14
5. Step 5: Solve for x
   x = 9,843,298,641.14/111,648.02
6. Step 6: Final answer
   x = 88,163.67