Finding the Fourth Proportional to 10,076.81, 13,905.59 and 5,600.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,076.81 : 13,905.59 = 5,600.63 : x
2. Step 2: Convert to fraction form
   10,076.81/13,905.59 = 5,600.63/x
3. Step 3: Cross multiply
   10,076.81x = 13,905.59 × 5,600.63
4. Step 4: Simplify right side
   10,076.81x = 77,880,071.28
5. Step 5: Solve for x
   x = 77,880,071.28/10,076.81
6. Step 6: Final answer
   x = 7,728.65