Finding the Fourth Proportional to 12,904.16, 19,355.82 and 3,670.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,904.16 : 19,355.82 = 3,670.16 : x
2. Step 2: Convert to fraction form
   12,904.16/19,355.82 = 3,670.16/x
3. Step 3: Cross multiply
   12,904.16x = 19,355.82 × 3,670.16
4. Step 4: Simplify right side
   12,904.16x = 71,038,859.55
5. Step 5: Solve for x
   x = 71,038,859.55/12,904.16
6. Step 6: Final answer
   x = 5,505.12