Finding the Fourth Proportional to 151,458.12, 209,013.71 and 83,477.61

Step by Step Solution

1. Step 1: Write the proportion equation
   151,458.12 : 209,013.71 = 83,477.61 : x
2. Step 2: Convert to fraction form
   151,458.12/209,013.71 = 83,477.61/x
3. Step 3: Cross multiply
   151,458.12x = 209,013.71 × 83,477.61
4. Step 4: Simplify right side
   151,458.12x = 17,447,964,550.65
5. Step 5: Solve for x
   x = 17,447,964,550.65/151,458.12
6. Step 6: Final answer
   x = 115,199.93