Finding the Fourth Proportional to 12,918.60, 19,354.52 and 5,904.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,918.60 : 19,354.52 = 5,904.52 : x
2. Step 2: Convert to fraction form
   12,918.60/19,354.52 = 5,904.52/x
3. Step 3: Cross multiply
   12,918.60x = 19,354.52 × 5,904.52
4. Step 4: Simplify right side
   12,918.60x = 114,279,150.43
5. Step 5: Solve for x
   x = 114,279,150.43/12,918.60
6. Step 6: Final answer
   x = 8,846.09