Finding the Fourth Proportional to 9,061.56, 12,505.86 and 5,912.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.56 : 12,505.86 = 5,912.28 : x
2. Step 2: Convert to fraction form
   9,061.56/12,505.86 = 5,912.28/x
3. Step 3: Cross multiply
   9,061.56x = 12,505.86 × 5,912.28
4. Step 4: Simplify right side
   9,061.56x = 73,938,145.96
5. Step 5: Solve for x
   x = 73,938,145.96/9,061.56
6. Step 6: Final answer
   x = 8,159.54