Finding the Fourth Proportional to 13,900.76, 19,181.21 and 7,932.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.76 : 19,181.21 = 7,932.07 : x
2. Step 2: Convert to fraction form
   13,900.76/19,181.21 = 7,932.07/x
3. Step 3: Cross multiply
   13,900.76x = 19,181.21 × 7,932.07
4. Step 4: Simplify right side
   13,900.76x = 152,146,684.72
5. Step 5: Solve for x
   x = 152,146,684.72/13,900.76
6. Step 6: Final answer
   x = 10,945.21