Finding the Fourth Proportional to 10,731.30, 16,061.94 and 10,345.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,731.30 : 16,061.94 = 10,345.98 : x
2. Step 2: Convert to fraction form
   10,731.30/16,061.94 = 10,345.98/x
3. Step 3: Cross multiply
   10,731.30x = 16,061.94 × 10,345.98
4. Step 4: Simplify right side
   10,731.30x = 166,176,510.00
5. Step 5: Solve for x
   x = 166,176,510.00/10,731.30
6. Step 6: Final answer
   x = 15,485.22