Finding the Fourth Proportional to 9,025.74, 12,427.83 and 7,900.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,025.74 : 12,427.83 = 7,900.38 : x
2. Step 2: Convert to fraction form
   9,025.74/12,427.83 = 7,900.38/x
3. Step 3: Cross multiply
   9,025.74x = 12,427.83 × 7,900.38
4. Step 4: Simplify right side
   9,025.74x = 98,184,579.58
5. Step 5: Solve for x
   x = 98,184,579.58/9,025.74
6. Step 6: Final answer
   x = 10,878.29