Finding the Fourth Proportional to 13,078.58, 18,053.08 and 7,773.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.58 : 18,053.08 = 7,773.38 : x
2. Step 2: Convert to fraction form
   13,078.58/18,053.08 = 7,773.38/x
3. Step 3: Cross multiply
   13,078.58x = 18,053.08 × 7,773.38
4. Step 4: Simplify right side
   13,078.58x = 140,333,451.01
5. Step 5: Solve for x
   x = 140,333,451.01/13,078.58
6. Step 6: Final answer
   x = 10,730.02