Finding the Fourth Proportional to 151,658.83, 209,300.93 and 83,689.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,658.83 : 209,300.93 = 83,689.30 : x
2. Step 2: Convert to fraction form
   151,658.83/209,300.93 = 83,689.30/x
3. Step 3: Cross multiply
   151,658.83x = 209,300.93 × 83,689.30
4. Step 4: Simplify right side
   151,658.83x = 17,516,248,321.05
5. Step 5: Solve for x
   x = 17,516,248,321.05/151,658.83
6. Step 6: Final answer
   x = 115,497.71