Finding the Fourth Proportional to 9,057.84, 12,499.80 and 5,078.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,057.84 : 12,499.80 = 5,078.94 : x
2. Step 2: Convert to fraction form
   9,057.84/12,499.80 = 5,078.94/x
3. Step 3: Cross multiply
   9,057.84x = 12,499.80 × 5,078.94
4. Step 4: Simplify right side
   9,057.84x = 63,485,734.21
5. Step 5: Solve for x
   x = 63,485,734.21/9,057.84
6. Step 6: Final answer
   x = 7,008.93