Finding the Fourth Proportional to 209,162.32, 288,645.83 and 113,669.03

Step by Step Solution

1. Step 1: Write the proportion equation
   209,162.32 : 288,645.83 = 113,669.03 : x
2. Step 2: Convert to fraction form
   209,162.32/288,645.83 = 113,669.03/x
3. Step 3: Cross multiply
   209,162.32x = 288,645.83 × 113,669.03
4. Step 4: Simplify right side
   209,162.32x = 32,810,092,089.17
5. Step 5: Solve for x
   x = 32,810,092,089.17/209,162.32
6. Step 6: Final answer
   x = 156,864.26