Finding the Fourth Proportional to 10,345.76, 14,252.06 and 7,688.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.76 : 14,252.06 = 7,688.56 : x
2. Step 2: Convert to fraction form
   10,345.76/14,252.06 = 7,688.56/x
3. Step 3: Cross multiply
   10,345.76x = 14,252.06 × 7,688.56
4. Step 4: Simplify right side
   10,345.76x = 109,577,818.43
5. Step 5: Solve for x
   x = 109,577,818.43/10,345.76
6. Step 6: Final answer
   x = 10,591.57