Finding the Fourth Proportional to 42,059.60, 63,089.15 and 10,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,059.60 : 63,089.15 = 10,469.50 : x
2. Step 2: Convert to fraction form
   42,059.60/63,089.15 = 10,469.50/x
3. Step 3: Cross multiply
   42,059.60x = 63,089.15 × 10,469.50
4. Step 4: Simplify right side
   42,059.60x = 660,511,645.85
5. Step 5: Solve for x
   x = 660,511,645.85/42,059.60
6. Step 6: Final answer
   x = 15,704.18