Finding the Fourth Proportional to 144,499.64, 199,417.02 and 80,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,499.64 : 199,417.02 = 80,838.50 : x
2. Step 2: Convert to fraction form
   144,499.64/199,417.02 = 80,838.50/x
3. Step 3: Cross multiply
   144,499.64x = 199,417.02 × 80,838.50
4. Step 4: Simplify right side
   144,499.64x = 16,120,572,771.27
5. Step 5: Solve for x
   x = 16,120,572,771.27/144,499.64
6. Step 6: Final answer
   x = 111,561.34