Finding the Fourth Proportional to 42,145.11, 63,196.20 and 14,055.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,145.11 : 63,196.20 = 14,055.12 : x
2. Step 2: Convert to fraction form
   42,145.11/63,196.20 = 14,055.12/x
3. Step 3: Cross multiply
   42,145.11x = 63,196.20 × 14,055.12
4. Step 4: Simplify right side
   42,145.11x = 888,230,174.54
5. Step 5: Solve for x
   x = 888,230,174.54/42,145.11
6. Step 6: Final answer
   x = 21,075.52