Finding the Fourth Proportional to 42,156.81, 63,184.46 and 15,481.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.81 : 63,184.46 = 15,481.35 : x
2. Step 2: Convert to fraction form
   42,156.81/63,184.46 = 15,481.35/x
3. Step 3: Cross multiply
   42,156.81x = 63,184.46 × 15,481.35
4. Step 4: Simplify right side
   42,156.81x = 978,180,662.41
5. Step 5: Solve for x
   x = 978,180,662.41/42,156.81
6. Step 6: Final answer
   x = 23,203.38