Finding the Fourth Proportional to 42,106.91, 63,160.43 and 10,942.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,106.91 : 63,160.43 = 10,942.16 : x
2. Step 2: Convert to fraction form
   42,106.91/63,160.43 = 10,942.16/x
3. Step 3: Cross multiply
   42,106.91x = 63,160.43 × 10,942.16
4. Step 4: Simplify right side
   42,106.91x = 691,111,160.22
5. Step 5: Solve for x
   x = 691,111,160.22/42,106.91
6. Step 6: Final answer
   x = 16,413.25