Finding the Fourth Proportional to 42,401.21, 63,557.53 and 14,311.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,401.21 : 63,557.53 = 14,311.58 : x
2. Step 2: Convert to fraction form
   42,401.21/63,557.53 = 14,311.58/x
3. Step 3: Cross multiply
   42,401.21x = 63,557.53 × 14,311.58
4. Step 4: Simplify right side
   42,401.21x = 909,608,321.63
5. Step 5: Solve for x
   x = 909,608,321.63/42,401.21
6. Step 6: Final answer
   x = 21,452.42