Finding the Fourth Proportional to 13,333.32, 19,998.60 and 3,973.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.32 : 19,998.60 = 3,973.38 : x
2. Step 2: Convert to fraction form
   13,333.32/19,998.60 = 3,973.38/x
3. Step 3: Cross multiply
   13,333.32x = 19,998.60 × 3,973.38
4. Step 4: Simplify right side
   13,333.32x = 79,462,037.27
5. Step 5: Solve for x
   x = 79,462,037.27/13,333.32
6. Step 6: Final answer
   x = 5,959.66