Finding the Fourth Proportional to 208,983.69, 288,389.76 and 113,488.34

Step by Step Solution

1. Step 1: Write the proportion equation
   208,983.69 : 288,389.76 = 113,488.34 : x
2. Step 2: Convert to fraction form
   208,983.69/288,389.76 = 113,488.34/x
3. Step 3: Cross multiply
   208,983.69x = 288,389.76 × 113,488.34
4. Step 4: Simplify right side
   208,983.69x = 32,728,873,693.45
5. Step 5: Solve for x
   x = 32,728,873,693.45/208,983.69
6. Step 6: Final answer
   x = 156,609.70