Finding the Fourth Proportional to 13,068.05, 18,036.54 and 7,761.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,068.05 : 18,036.54 = 7,761.84 : x
2. Step 2: Convert to fraction form
   13,068.05/18,036.54 = 7,761.84/x
3. Step 3: Cross multiply
   13,068.05x = 18,036.54 × 7,761.84
4. Step 4: Simplify right side
   13,068.05x = 139,996,698.82
5. Step 5: Solve for x
   x = 139,996,698.82/13,068.05
6. Step 6: Final answer
   x = 10,712.90