Finding the Fourth Proportional to 42,053.57, 63,069.60 and 12,464.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053.57 : 63,069.60 = 12,464.48 : x
2. Step 2: Convert to fraction form
   42,053.57/63,069.60 = 12,464.48/x
3. Step 3: Cross multiply
   42,053.57x = 63,069.60 × 12,464.48
4. Step 4: Simplify right side
   42,053.57x = 786,129,925.48
5. Step 5: Solve for x
   x = 786,129,925.48/42,053.57
6. Step 6: Final answer
   x = 18,693.54