Finding the Fourth Proportional to 42,103.94, 63,155.67 and 10,513.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,103.94 : 63,155.67 = 10,513.94 : x
2. Step 2: Convert to fraction form
   42,103.94/63,155.67 = 10,513.94/x
3. Step 3: Cross multiply
   42,103.94x = 63,155.67 × 10,513.94
4. Step 4: Simplify right side
   42,103.94x = 664,014,569.83
5. Step 5: Solve for x
   x = 664,014,569.83/42,103.94
6. Step 6: Final answer
   x = 15,770.84