Finding the Fourth Proportional to 13,009.06, 19,499.01 and 5,208.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,009.06 : 19,499.01 = 5,208.76 : x
2. Step 2: Convert to fraction form
   13,009.06/19,499.01 = 5,208.76/x
3. Step 3: Cross multiply
   13,009.06x = 19,499.01 × 5,208.76
4. Step 4: Simplify right side
   13,009.06x = 101,565,663.33
5. Step 5: Solve for x
   x = 101,565,663.33/13,009.06
6. Step 6: Final answer
   x = 7,807.30