Finding the Fourth Proportional to 13,782.79, 19,024.59 and 7,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,782.79 : 19,024.59 = 7,818.42 : x
2. Step 2: Convert to fraction form
   13,782.79/19,024.59 = 7,818.42/x
3. Step 3: Cross multiply
   13,782.79x = 19,024.59 × 7,818.42
4. Step 4: Simplify right side
   13,782.79x = 148,742,291.63
5. Step 5: Solve for x
   x = 148,742,291.63/13,782.79
6. Step 6: Final answer
   x = 10,791.88