Finding the Fourth Proportional to 13,986.06, 19,300.05 and 7,697.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,986.06 : 19,300.05 = 7,697.22 : x
2. Step 2: Convert to fraction form
   13,986.06/19,300.05 = 7,697.22/x
3. Step 3: Cross multiply
   13,986.06x = 19,300.05 × 7,697.22
4. Step 4: Simplify right side
   13,986.06x = 148,556,730.86
5. Step 5: Solve for x
   x = 148,556,730.86/13,986.06
6. Step 6: Final answer
   x = 10,621.77