Finding the Fourth Proportional to 13,817.03, 19,066.59 and 7,768.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,817.03 : 19,066.59 = 7,768.20 : x
2. Step 2: Convert to fraction form
   13,817.03/19,066.59 = 7,768.20/x
3. Step 3: Cross multiply
   13,817.03x = 19,066.59 × 7,768.20
4. Step 4: Simplify right side
   13,817.03x = 148,113,155.94
5. Step 5: Solve for x
   x = 148,113,155.94/13,817.03
6. Step 6: Final answer
   x = 10,719.61