Finding the Fourth Proportional to 9,131.42, 12,608.04 and 5,903.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.42 : 12,608.04 = 5,903.15 : x
2. Step 2: Convert to fraction form
   9,131.42/12,608.04 = 5,903.15/x
3. Step 3: Cross multiply
   9,131.42x = 12,608.04 × 5,903.15
4. Step 4: Simplify right side
   9,131.42x = 74,427,077.22
5. Step 5: Solve for x
   x = 74,427,077.22/9,131.42
6. Step 6: Final answer
   x = 8,150.66