Finding the Fourth Proportional to 144,749.59, 199,754.45 and 81,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   144,749.59 : 199,754.45 = 81,088.72 : x
2. Step 2: Convert to fraction form
   144,749.59/199,754.45 = 81,088.72/x
3. Step 3: Cross multiply
   144,749.59x = 199,754.45 × 81,088.72
4. Step 4: Simplify right side
   144,749.59x = 16,197,832,664.80
5. Step 5: Solve for x
   x = 16,197,832,664.80/144,749.59
6. Step 6: Final answer
   x = 111,902.44