Finding the Fourth Proportional to 10,051.40, 13,881.78 and 7,839.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.40 : 13,881.78 = 7,839.56 : x
2. Step 2: Convert to fraction form
   10,051.40/13,881.78 = 7,839.56/x
3. Step 3: Cross multiply
   10,051.40x = 13,881.78 × 7,839.56
4. Step 4: Simplify right side
   10,051.40x = 108,827,047.22
5. Step 5: Solve for x
   x = 108,827,047.22/10,051.40
6. Step 6: Final answer
   x = 10,827.05