Finding the Fourth Proportional to 208,554.27, 312,909.59 and 96,288.27

Step by Step Solution

1. Step 1: Write the proportion equation
   208,554.27 : 312,909.59 = 96,288.27 : x
2. Step 2: Convert to fraction form
   208,554.27/312,909.59 = 96,288.27/x
3. Step 3: Cross multiply
   208,554.27x = 312,909.59 × 96,288.27
4. Step 4: Simplify right side
   208,554.27x = 30,129,522,606.07
5. Step 5: Solve for x
   x = 30,129,522,606.07/208,554.27
6. Step 6: Final answer
   x = 144,468.50