Finding the Fourth Proportional to 151,571.79, 209,165.60 and 83,586.83

Step by Step Solution

1. Step 1: Write the proportion equation
   151,571.79 : 209,165.60 = 83,586.83 : x
2. Step 2: Convert to fraction form
   151,571.79/209,165.60 = 83,586.83/x
3. Step 3: Cross multiply
   151,571.79x = 209,165.60 × 83,586.83
4. Step 4: Simplify right side
   151,571.79x = 17,483,488,612.19
5. Step 5: Solve for x
   x = 17,483,488,612.19/151,571.79
6. Step 6: Final answer
   x = 115,347.91