Finding the Fourth Proportional to 42,123.24, 63,180.68 and 10,958.49

Step by Step Solution

1. Step 1: Write the proportion equation
   42,123.24 : 63,180.68 = 10,958.49 : x
2. Step 2: Convert to fraction form
   42,123.24/63,180.68 = 10,958.49/x
3. Step 3: Cross multiply
   42,123.24x = 63,180.68 × 10,958.49
4. Step 4: Simplify right side
   42,123.24x = 692,364,795.18
5. Step 5: Solve for x
   x = 692,364,795.18/42,123.24
6. Step 6: Final answer
   x = 16,436.65