Finding the Fourth Proportional to 14,426.10, 21,534.86 and 13,343.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,426.10 : 21,534.86 = 13,343.94 : x
2. Step 2: Convert to fraction form
   14,426.10/21,534.86 = 13,343.94/x
3. Step 3: Cross multiply
   14,426.10x = 21,534.86 × 13,343.94
4. Step 4: Simplify right side
   14,426.10x = 287,359,913.11
5. Step 5: Solve for x
   x = 287,359,913.11/14,426.10
6. Step 6: Final answer
   x = 19,919.45