Finding the Fourth Proportional to 13,816.34, 19,066.68 and 7,528.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,816.34 : 19,066.68 = 7,528.76 : x
2. Step 2: Convert to fraction form
   13,816.34/19,066.68 = 7,528.76/x
3. Step 3: Cross multiply
   13,816.34x = 19,066.68 × 7,528.76
4. Step 4: Simplify right side
   13,816.34x = 143,548,457.72
5. Step 5: Solve for x
   x = 143,548,457.72/13,816.34
6. Step 6: Final answer
   x = 10,389.76