Finding the Fourth Proportional to 208,958.27, 288,362.45 and 113,465.00

Step by Step Solution

1. Step 1: Write the proportion equation
   208,958.27 : 288,362.45 = 113,465.00 : x
2. Step 2: Convert to fraction form
   208,958.27/288,362.45 = 113,465.00/x
3. Step 3: Cross multiply
   208,958.27x = 288,362.45 × 113,465.00
4. Step 4: Simplify right side
   208,958.27x = 32,719,044,231.10
5. Step 5: Solve for x
   x = 32,719,044,231.10/208,958.27
6. Step 6: Final answer
   x = 156,581.71