Finding the Fourth Proportional to 144,498.08, 199,320.72 and 91,506.08

Step by Step Solution

1. Step 1: Write the proportion equation
   144,498.08 : 199,320.72 = 91,506.08 : x
2. Step 2: Convert to fraction form
   144,498.08/199,320.72 = 91,506.08/x
3. Step 3: Cross multiply
   144,498.08x = 199,320.72 × 91,506.08
4. Step 4: Simplify right side
   144,498.08x = 18,239,057,749.98
5. Step 5: Solve for x
   x = 18,239,057,749.98/144,498.08
6. Step 6: Final answer
   x = 126,223.53