Finding the Fourth Proportional to 13,903.61, 19,187.28 and 7,935.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,903.61 : 19,187.28 = 7,935.15 : x
2. Step 2: Convert to fraction form
   13,903.61/19,187.28 = 7,935.15/x
3. Step 3: Cross multiply
   13,903.61x = 19,187.28 × 7,935.15
4. Step 4: Simplify right side
   13,903.61x = 152,253,944.89
5. Step 5: Solve for x
   x = 152,253,944.89/13,903.61
6. Step 6: Final answer
   x = 10,950.68