Finding the Fourth Proportional to 12,866.01, 19,301.04 and 5,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,866.01 : 19,301.04 = 5,470.50 : x
2. Step 2: Convert to fraction form
   12,866.01/19,301.04 = 5,470.50/x
3. Step 3: Cross multiply
   12,866.01x = 19,301.04 × 5,470.50
4. Step 4: Simplify right side
   12,866.01x = 105,586,339.32
5. Step 5: Solve for x
   x = 105,586,339.32/12,866.01
6. Step 6: Final answer
   x = 8,206.61