Finding the Fourth Proportional to 13,788.24, 19,026.84 and 7,820.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,788.24 : 19,026.84 = 7,820.52 : x
2. Step 2: Convert to fraction form
   13,788.24/19,026.84 = 7,820.52/x
3. Step 3: Cross multiply
   13,788.24x = 19,026.84 × 7,820.52
4. Step 4: Simplify right side
   13,788.24x = 148,799,782.76
5. Step 5: Solve for x
   x = 148,799,782.76/13,788.24
6. Step 6: Final answer
   x = 10,791.79