Finding the Fourth Proportional to 12,715.33, 19,070.82 and 3,355.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.33 : 19,070.82 = 3,355.45 : x
2. Step 2: Convert to fraction form
   12,715.33/19,070.82 = 3,355.45/x
3. Step 3: Cross multiply
   12,715.33x = 19,070.82 × 3,355.45
4. Step 4: Simplify right side
   12,715.33x = 63,991,179.49
5. Step 5: Solve for x
   x = 63,991,179.49/12,715.33
6. Step 6: Final answer
   x = 5,032.60