Finding the Fourth Proportional to 111,872.57, 154,349.33 and 63,466.49

Step by Step Solution

1. Step 1: Write the proportion equation
   111,872.57 : 154,349.33 = 63,466.49 : x
2. Step 2: Convert to fraction form
   111,872.57/154,349.33 = 63,466.49/x
3. Step 3: Cross multiply
   111,872.57x = 154,349.33 × 63,466.49
4. Step 4: Simplify right side
   111,872.57x = 9,796,009,119.87
5. Step 5: Solve for x
   x = 9,796,009,119.87/111,872.57
6. Step 6: Final answer
   x = 87,564.00