Finding the Fourth Proportional to 13,068.05, 18,035.45 and 7,762.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,068.05 : 18,035.45 = 7,762.88 : x
2. Step 2: Convert to fraction form
   13,068.05/18,035.45 = 7,762.88/x
3. Step 3: Cross multiply
   13,068.05x = 18,035.45 × 7,762.88
4. Step 4: Simplify right side
   13,068.05x = 140,006,905.10
5. Step 5: Solve for x
   x = 140,006,905.10/13,068.05
6. Step 6: Final answer
   x = 10,713.68