Finding the Fourth Proportional to 345,766.48, 477,345.72 and 238,910.92

Step by Step Solution

1. Step 1: Write the proportion equation
   345,766.48 : 477,345.72 = 238,910.92 : x
2. Step 2: Convert to fraction form
   345,766.48/477,345.72 = 238,910.92/x
3. Step 3: Cross multiply
   345,766.48x = 477,345.72 × 238,910.92
4. Step 4: Simplify right side
   345,766.48x = 114,043,105,123.26
5. Step 5: Solve for x
   x = 114,043,105,123.26/345,766.48
6. Step 6: Final answer
   x = 329,826.95