Finding the Fourth Proportional to 42,123.25, 63,188.52 and 10,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,123.25 : 63,188.52 = 10,958.50 : x
2. Step 2: Convert to fraction form
   42,123.25/63,188.52 = 10,958.50/x
3. Step 3: Cross multiply
   42,123.25x = 63,188.52 × 10,958.50
4. Step 4: Simplify right side
   42,123.25x = 692,451,396.42
5. Step 5: Solve for x
   x = 692,451,396.42/42,123.25
6. Step 6: Final answer
   x = 16,438.70