Finding the Fourth Proportional to 14,061.89, 19,405.20 and 7,688.51

Step by Step Solution

1. Step 1: Write the proportion equation
   14,061.89 : 19,405.20 = 7,688.51 : x
2. Step 2: Convert to fraction form
   14,061.89/19,405.20 = 7,688.51/x
3. Step 3: Cross multiply
   14,061.89x = 19,405.20 × 7,688.51
4. Step 4: Simplify right side
   14,061.89x = 149,196,977.23
5. Step 5: Solve for x
   x = 149,196,977.23/14,061.89
6. Step 6: Final answer
   x = 10,610.02