Finding the Fourth Proportional to 21,073.02, 29,068.46 and 13,117.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,073.02 : 29,068.46 = 13,117.81 : x
2. Step 2: Convert to fraction form
   21,073.02/29,068.46 = 13,117.81/x
3. Step 3: Cross multiply
   21,073.02x = 29,068.46 × 13,117.81
4. Step 4: Simplify right side
   21,073.02x = 381,314,535.27
5. Step 5: Solve for x
   x = 381,314,535.27/21,073.02
6. Step 6: Final answer
   x = 18,094.92