Finding the Fourth Proportional to 9,510.14, 13,123.23 and 5,261.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,510.14 : 13,123.23 = 5,261.10 : x
2. Step 2: Convert to fraction form
   9,510.14/13,123.23 = 5,261.10/x
3. Step 3: Cross multiply
   9,510.14x = 13,123.23 × 5,261.10
4. Step 4: Simplify right side
   9,510.14x = 69,042,659.82
5. Step 5: Solve for x
   x = 69,042,659.82/9,510.14
6. Step 6: Final answer
   x = 7,259.90