Finding the Fourth Proportional to 151,678.39, 209,315.94 and 83,695.31

Step by Step Solution

1. Step 1: Write the proportion equation
   151,678.39 : 209,315.94 = 83,695.31 : x
2. Step 2: Convert to fraction form
   151,678.39/209,315.94 = 83,695.31/x
3. Step 3: Cross multiply
   151,678.39x = 209,315.94 × 83,695.31
4. Step 4: Simplify right side
   151,678.39x = 17,518,762,486.24
5. Step 5: Solve for x
   x = 17,518,762,486.24/151,678.39
6. Step 6: Final answer
   x = 115,499.40