Finding the Fourth Proportional to 144,296.84, 199,123.92 and 83,864.57

Step by Step Solution

1. Step 1: Write the proportion equation
   144,296.84 : 199,123.92 = 83,864.57 : x
2. Step 2: Convert to fraction form
   144,296.84/199,123.92 = 83,864.57/x
3. Step 3: Cross multiply
   144,296.84x = 199,123.92 × 83,864.57
4. Step 4: Simplify right side
   144,296.84x = 16,699,440,931.89
5. Step 5: Solve for x
   x = 16,699,440,931.89/144,296.84
6. Step 6: Final answer
   x = 115,729.77