Finding the Fourth Proportional to 13,902.49, 19,186.81 and 7,935.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,902.49 : 19,186.81 = 7,935.06 : x
2. Step 2: Convert to fraction form
   13,902.49/19,186.81 = 7,935.06/x
3. Step 3: Cross multiply
   13,902.49x = 19,186.81 × 7,935.06
4. Step 4: Simplify right side
   13,902.49x = 152,248,468.72
5. Step 5: Solve for x
   x = 152,248,468.72/13,902.49
6. Step 6: Final answer
   x = 10,951.17