Finding the Fourth Proportional to 151,290.18, 208,778.58 and 83,305.71

Step by Step Solution

1. Step 1: Write the proportion equation
   151,290.18 : 208,778.58 = 83,305.71 : x
2. Step 2: Convert to fraction form
   151,290.18/208,778.58 = 83,305.71/x
3. Step 3: Cross multiply
   151,290.18x = 208,778.58 × 83,305.71
4. Step 4: Simplify right side
   151,290.18x = 17,392,447,839.69
5. Step 5: Solve for x
   x = 17,392,447,839.69/151,290.18
6. Step 6: Final answer
   x = 114,960.85