Finding the Fourth Proportional to 7,003.76, 10,507.12 and 5,857.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.76 : 10,507.12 = 5,857.52 : x
2. Step 2: Convert to fraction form
   7,003.76/10,507.12 = 5,857.52/x
3. Step 3: Cross multiply
   7,003.76x = 10,507.12 × 5,857.52
4. Step 4: Simplify right side
   7,003.76x = 61,545,665.54
5. Step 5: Solve for x
   x = 61,545,665.54/7,003.76
6. Step 6: Final answer
   x = 8,787.52