Finding the Fourth Proportional to 144,916.72, 199,775.10 and 101,764.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,916.72 : 199,775.10 = 101,764.78 : x
2. Step 2: Convert to fraction form
   144,916.72/199,775.10 = 101,764.78/x
3. Step 3: Cross multiply
   144,916.72x = 199,775.10 × 101,764.78
4. Step 4: Simplify right side
   144,916.72x = 20,330,069,100.98
5. Step 5: Solve for x
   x = 20,330,069,100.98/144,916.72
6. Step 6: Final answer
   x = 140,287.95