Finding the Fourth Proportional to 9,300.51, 12,829.02 and 5,521.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.51 : 12,829.02 = 5,521.11 : x
2. Step 2: Convert to fraction form
   9,300.51/12,829.02 = 5,521.11/x
3. Step 3: Cross multiply
   9,300.51x = 12,829.02 × 5,521.11
4. Step 4: Simplify right side
   9,300.51x = 70,830,430.61
5. Step 5: Solve for x
   x = 70,830,430.61/9,300.51
6. Step 6: Final answer
   x = 7,615.76