Finding the Fourth Proportional to 7,553.51, 10,411.71 and 5,130.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,553.51 : 10,411.71 = 5,130.12 : x
2. Step 2: Convert to fraction form
   7,553.51/10,411.71 = 5,130.12/x
3. Step 3: Cross multiply
   7,553.51x = 10,411.71 × 5,130.12
4. Step 4: Simplify right side
   7,553.51x = 53,413,321.71
5. Step 5: Solve for x
   x = 53,413,321.71/7,553.51
6. Step 6: Final answer
   x = 7,071.33