Finding the Fourth Proportional to 13,900.17, 19,181.50 and 7,932.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.17 : 19,181.50 = 7,932.40 : x
2. Step 2: Convert to fraction form
   13,900.17/19,181.50 = 7,932.40/x
3. Step 3: Cross multiply
   13,900.17x = 19,181.50 × 7,932.40
4. Step 4: Simplify right side
   13,900.17x = 152,155,234.69
5. Step 5: Solve for x
   x = 152,155,234.69/13,900.17
6. Step 6: Final answer
   x = 10,946.29