Finding the Fourth Proportional to 13,333.18, 19,993.05 and 4,445.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.18 : 19,993.05 = 4,445.42 : x
2. Step 2: Convert to fraction form
   13,333.18/19,993.05 = 4,445.42/x
3. Step 3: Cross multiply
   13,333.18x = 19,993.05 × 4,445.42
4. Step 4: Simplify right side
   13,333.18x = 88,877,501.21
5. Step 5: Solve for x
   x = 88,877,501.21/13,333.18
6. Step 6: Final answer
   x = 6,665.89