Finding the Fourth Proportional to 234,663.31, 323,880.02 and 139,222.63

Step by Step Solution

1. Step 1: Write the proportion equation
   234,663.31 : 323,880.02 = 139,222.63 : x
2. Step 2: Convert to fraction form
   234,663.31/323,880.02 = 139,222.63/x
3. Step 3: Cross multiply
   234,663.31x = 323,880.02 × 139,222.63
4. Step 4: Simplify right side
   234,663.31x = 45,091,428,188.85
5. Step 5: Solve for x
   x = 45,091,428,188.85/234,663.31
6. Step 6: Final answer
   x = 192,153.72