Finding the Fourth Proportional to 9,510.98, 13,124.61 and 5,261.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,510.98 : 13,124.61 = 5,261.80 : x
2. Step 2: Convert to fraction form
   9,510.98/13,124.61 = 5,261.80/x
3. Step 3: Cross multiply
   9,510.98x = 13,124.61 × 5,261.80
4. Step 4: Simplify right side
   9,510.98x = 69,059,053.64
5. Step 5: Solve for x
   x = 69,059,053.64/9,510.98
6. Step 6: Final answer
   x = 7,260.98