Finding the Fourth Proportional to 111,663.84, 154,080.55 and 81,483.24

Step by Step Solution

1. Step 1: Write the proportion equation
   111,663.84 : 154,080.55 = 81,483.24 : x
2. Step 2: Convert to fraction form
   111,663.84/154,080.55 = 81,483.24/x
3. Step 3: Cross multiply
   111,663.84x = 154,080.55 × 81,483.24
4. Step 4: Simplify right side
   111,663.84x = 12,554,982,434.98
5. Step 5: Solve for x
   x = 12,554,982,434.98/111,663.84
6. Step 6: Final answer
   x = 112,435.52