Finding the Fourth Proportional to 12,931.02, 19,398.49 and 5,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931.02 : 19,398.49 = 5,535.50 : x
2. Step 2: Convert to fraction form
   12,931.02/19,398.49 = 5,535.50/x
3. Step 3: Cross multiply
   12,931.02x = 19,398.49 × 5,535.50
4. Step 4: Simplify right side
   12,931.02x = 107,380,341.40
5. Step 5: Solve for x
   x = 107,380,341.40/12,931.02
6. Step 6: Final answer
   x = 8,304.09