Finding the Fourth Proportional to 111,638.18, 154,060.44 and 63,892.46

Step by Step Solution

1. Step 1: Write the proportion equation
   111,638.18 : 154,060.44 = 63,892.46 : x
2. Step 2: Convert to fraction form
   111,638.18/154,060.44 = 63,892.46/x
3. Step 3: Cross multiply
   111,638.18x = 154,060.44 × 63,892.46
4. Step 4: Simplify right side
   111,638.18x = 9,843,300,500.28
5. Step 5: Solve for x
   x = 9,843,300,500.28/111,638.18
6. Step 6: Final answer
   x = 88,171.45