Finding the Fourth Proportional to 13,307.05, 19,961.69 and 3,446.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,307.05 : 19,961.69 = 3,446.51 : x
2. Step 2: Convert to fraction form
   13,307.05/19,961.69 = 3,446.51/x
3. Step 3: Cross multiply
   13,307.05x = 19,961.69 × 3,446.51
4. Step 4: Simplify right side
   13,307.05x = 68,798,196.87
5. Step 5: Solve for x
   x = 68,798,196.87/13,307.05
6. Step 6: Final answer
   x = 5,170.06