Finding the Fourth Proportional to 7,905.94, 10,912.47 and 5,219.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,905.94 : 10,912.47 = 5,219.12 : x
2. Step 2: Convert to fraction form
   7,905.94/10,912.47 = 5,219.12/x
3. Step 3: Cross multiply
   7,905.94x = 10,912.47 × 5,219.12
4. Step 4: Simplify right side
   7,905.94x = 56,953,490.43
5. Step 5: Solve for x
   x = 56,953,490.43/7,905.94
6. Step 6: Final answer
   x = 7,203.89