Finding the Fourth Proportional to 12,905.01, 19,365.71 and 5,509.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,905.01 : 19,365.71 = 5,509.52 : x
2. Step 2: Convert to fraction form
   12,905.01/19,365.71 = 5,509.52/x
3. Step 3: Cross multiply
   12,905.01x = 19,365.71 × 5,509.52
4. Step 4: Simplify right side
   12,905.01x = 106,695,787.43
5. Step 5: Solve for x
   x = 106,695,787.43/12,905.01
6. Step 6: Final answer
   x = 8,267.78