Finding the Fourth Proportional to 12,796.90, 19,196.16 and 4,476.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.90 : 19,196.16 = 4,476.58 : x
2. Step 2: Convert to fraction form
   12,796.90/19,196.16 = 4,476.58/x
3. Step 3: Cross multiply
   12,796.90x = 19,196.16 × 4,476.58
4. Step 4: Simplify right side
   12,796.90x = 85,933,145.93
5. Step 5: Solve for x
   x = 85,933,145.93/12,796.90
6. Step 6: Final answer
   x = 6,715.15