Finding the Fourth Proportional to 209,044.86, 288,488.15 and 113,558.01

Step by Step Solution

1. Step 1: Write the proportion equation
   209,044.86 : 288,488.15 = 113,558.01 : x
2. Step 2: Convert to fraction form
   209,044.86/288,488.15 = 113,558.01/x
3. Step 3: Cross multiply
   209,044.86x = 288,488.15 × 113,558.01
4. Step 4: Simplify right side
   209,044.86x = 32,760,140,222.58
5. Step 5: Solve for x
   x = 32,760,140,222.58/209,044.86
6. Step 6: Final answer
   x = 156,713.45