Finding the Fourth Proportional to 15,847.01, 21,868.07 and 8,773.89

Step by Step Solution

1. Step 1: Write the proportion equation
   15,847.01 : 21,868.07 = 8,773.89 : x
2. Step 2: Convert to fraction form
   15,847.01/21,868.07 = 8,773.89/x
3. Step 3: Cross multiply
   15,847.01x = 21,868.07 × 8,773.89
4. Step 4: Simplify right side
   15,847.01x = 191,867,996.82
5. Step 5: Solve for x
   x = 191,867,996.82/15,847.01
6. Step 6: Final answer
   x = 12,107.52