Finding the Fourth Proportional to 13,903.38, 19,188.90 and 7,935.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,903.38 : 19,188.90 = 7,935.30 : x
2. Step 2: Convert to fraction form
   13,903.38/19,188.90 = 7,935.30/x
3. Step 3: Cross multiply
   13,903.38x = 19,188.90 × 7,935.30
4. Step 4: Simplify right side
   13,903.38x = 152,269,678.17
5. Step 5: Solve for x
   x = 152,269,678.17/13,903.38
6. Step 6: Final answer
   x = 10,951.99