Finding the Fourth Proportional to 12,930.72, 19,405.74 and 5,034.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,930.72 : 19,405.74 = 5,034.48 : x
2. Step 2: Convert to fraction form
   12,930.72/19,405.74 = 5,034.48/x
3. Step 3: Cross multiply
   12,930.72x = 19,405.74 × 5,034.48
4. Step 4: Simplify right side
   12,930.72x = 97,697,809.92
5. Step 5: Solve for x
   x = 97,697,809.92/12,930.72
6. Step 6: Final answer
   x = 7,555.48