Finding the Fourth Proportional to 42,109.18, 63,170.25 and 14,019.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,109.18 : 63,170.25 = 14,019.60 : x
2. Step 2: Convert to fraction form
   42,109.18/63,170.25 = 14,019.60/x
3. Step 3: Cross multiply
   42,109.18x = 63,170.25 × 14,019.60
4. Step 4: Simplify right side
   42,109.18x = 885,621,636.90
5. Step 5: Solve for x
   x = 885,621,636.90/42,109.18
6. Step 6: Final answer
   x = 21,031.56