Finding the Fourth Proportional to 111,643.02, 154,058.43 and 63,885.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,643.02 : 154,058.43 = 63,885.42 : x
2. Step 2: Convert to fraction form
   111,643.02/154,058.43 = 63,885.42/x
3. Step 3: Cross multiply
   111,643.02x = 154,058.43 × 63,885.42
4. Step 4: Simplify right side
   111,643.02x = 9,842,087,505.09
5. Step 5: Solve for x
   x = 9,842,087,505.09/111,643.02
6. Step 6: Final answer
   x = 88,156.77