Finding the Fourth Proportional to 13,076.84, 19,603.92 and 5,280.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,076.84 : 19,603.92 = 5,280.59 : x
2. Step 2: Convert to fraction form
   13,076.84/19,603.92 = 5,280.59/x
3. Step 3: Cross multiply
   13,076.84x = 19,603.92 × 5,280.59
4. Step 4: Simplify right side
   13,076.84x = 103,520,332.72
5. Step 5: Solve for x
   x = 103,520,332.72/13,076.84
6. Step 6: Final answer
   x = 7,916.31