Finding the Fourth Proportional to 9,607.51, 13,258.25 and 5,415.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,607.51 : 13,258.25 = 5,415.76 : x
2. Step 2: Convert to fraction form
   9,607.51/13,258.25 = 5,415.76/x
3. Step 3: Cross multiply
   9,607.51x = 13,258.25 × 5,415.76
4. Step 4: Simplify right side
   9,607.51x = 71,803,472.94
5. Step 5: Solve for x
   x = 71,803,472.94/9,607.51
6. Step 6: Final answer
   x = 7,473.68