Finding the Fourth Proportional to 428,706.03, 591,622.46 and 235,101.47

Step by Step Solution

1. Step 1: Write the proportion equation
   428,706.03 : 591,622.46 = 235,101.47 : x
2. Step 2: Convert to fraction form
   428,706.03/591,622.46 = 235,101.47/x
3. Step 3: Cross multiply
   428,706.03x = 591,622.46 × 235,101.47
4. Step 4: Simplify right side
   428,706.03x = 139,091,311,941.59
5. Step 5: Solve for x
   x = 139,091,311,941.59/428,706.03
6. Step 6: Final answer
   x = 324,444.50