Finding the Fourth Proportional to 7,219.34, 10,731.60 and 7,006.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,219.34 : 10,731.60 = 7,006.51 : x
2. Step 2: Convert to fraction form
   7,219.34/10,731.60 = 7,006.51/x
3. Step 3: Cross multiply
   7,219.34x = 10,731.60 × 7,006.51
4. Step 4: Simplify right side
   7,219.34x = 75,191,018.37
5. Step 5: Solve for x
   x = 75,191,018.37/7,219.34
6. Step 6: Final answer
   x = 10,415.22