Finding the Fourth Proportional to 13,905.07, 19,189.30 and 7,936.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,905.07 : 19,189.30 = 7,936.62 : x
2. Step 2: Convert to fraction form
   13,905.07/19,189.30 = 7,936.62/x
3. Step 3: Cross multiply
   13,905.07x = 19,189.30 × 7,936.62
4. Step 4: Simplify right side
   13,905.07x = 152,298,182.17
5. Step 5: Solve for x
   x = 152,298,182.17/13,905.07
6. Step 6: Final answer
   x = 10,952.71