Finding the Fourth Proportional to 10,105.84, 13,945.80 and 9,807.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.84 : 13,945.80 = 9,807.76 : x
2. Step 2: Convert to fraction form
   10,105.84/13,945.80 = 9,807.76/x
3. Step 3: Cross multiply
   10,105.84x = 13,945.80 × 9,807.76
4. Step 4: Simplify right side
   10,105.84x = 136,777,059.41
5. Step 5: Solve for x
   x = 136,777,059.41/10,105.84
6. Step 6: Final answer
   x = 13,534.46