Finding the Fourth Proportional to 13,123.54, 19,681.03 and 4,356.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.54 : 19,681.03 = 4,356.10 : x
2. Step 2: Convert to fraction form
   13,123.54/19,681.03 = 4,356.10/x
3. Step 3: Cross multiply
   13,123.54x = 19,681.03 × 4,356.10
4. Step 4: Simplify right side
   13,123.54x = 85,732,474.69
5. Step 5: Solve for x
   x = 85,732,474.69/13,123.54
6. Step 6: Final answer
   x = 6,532.73