Finding the Fourth Proportional to 10,113.94, 13,957.71 and 5,637.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,113.94 : 13,957.71 = 5,637.72 : x
2. Step 2: Convert to fraction form
   10,113.94/13,957.71 = 5,637.72/x
3. Step 3: Cross multiply
   10,113.94x = 13,957.71 × 5,637.72
4. Step 4: Simplify right side
   10,113.94x = 78,689,660.82
5. Step 5: Solve for x
   x = 78,689,660.82/10,113.94
6. Step 6: Final answer
   x = 7,780.32