Finding the Fourth Proportional to 151,550.61, 209,135.27 and 83,567.55

Step by Step Solution

1. Step 1: Write the proportion equation
   151,550.61 : 209,135.27 = 83,567.55 : x
2. Step 2: Convert to fraction form
   151,550.61/209,135.27 = 83,567.55/x
3. Step 3: Cross multiply
   151,550.61x = 209,135.27 × 83,567.55
4. Step 4: Simplify right side
   151,550.61x = 17,476,921,714.65
5. Step 5: Solve for x
   x = 17,476,921,714.65/151,550.61
6. Step 6: Final answer
   x = 115,320.70