Finding the Fourth Proportional to 13,333.33, 19,978.08 and 4,563.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.33 : 19,978.08 = 4,563.46 : x
2. Step 2: Convert to fraction form
   13,333.33/19,978.08 = 4,563.46/x
3. Step 3: Cross multiply
   13,333.33x = 19,978.08 × 4,563.46
4. Step 4: Simplify right side
   13,333.33x = 91,169,168.96
5. Step 5: Solve for x
   x = 91,169,168.96/13,333.33
6. Step 6: Final answer
   x = 6,837.69