Finding the Fourth Proportional to 7,359.56, 10,156.30 and 4,215.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,359.56 : 10,156.30 = 4,215.75 : x
2. Step 2: Convert to fraction form
   7,359.56/10,156.30 = 4,215.75/x
3. Step 3: Cross multiply
   7,359.56x = 10,156.30 × 4,215.75
4. Step 4: Simplify right side
   7,359.56x = 42,816,411.19
5. Step 5: Solve for x
   x = 42,816,411.19/7,359.56
6. Step 6: Final answer
   x = 5,817.79