Finding the Fourth Proportional to 9,196.01, 12,690.38 and 5,419.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,196.01 : 12,690.38 = 5,419.34 : x
2. Step 2: Convert to fraction form
   9,196.01/12,690.38 = 5,419.34/x
3. Step 3: Cross multiply
   9,196.01x = 12,690.38 × 5,419.34
4. Step 4: Simplify right side
   9,196.01x = 68,773,393.40
5. Step 5: Solve for x
   x = 68,773,393.40/9,196.01
6. Step 6: Final answer
   x = 7,478.61