Finding the Fourth Proportional to 12,795.40, 19,191.42 and 5,009.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,795.40 : 19,191.42 = 5,009.64 : x
2. Step 2: Convert to fraction form
   12,795.40/19,191.42 = 5,009.64/x
3. Step 3: Cross multiply
   12,795.40x = 19,191.42 × 5,009.64
4. Step 4: Simplify right side
   12,795.40x = 96,142,105.29
5. Step 5: Solve for x
   x = 96,142,105.29/12,795.40
6. Step 6: Final answer
   x = 7,513.80