Finding the Fourth Proportional to 14,606.20, 20,156.56 and 7,891.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,606.20 : 20,156.56 = 7,891.82 : x
2. Step 2: Convert to fraction form
   14,606.20/20,156.56 = 7,891.82/x
3. Step 3: Cross multiply
   14,606.20x = 20,156.56 × 7,891.82
4. Step 4: Simplify right side
   14,606.20x = 159,071,943.34
5. Step 5: Solve for x
   x = 159,071,943.34/14,606.20
6. Step 6: Final answer
   x = 10,890.71