Finding the Fourth Proportional to 9,112.10, 12,570.26 and 5,335.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.10 : 12,570.26 = 5,335.34 : x
2. Step 2: Convert to fraction form
   9,112.10/12,570.26 = 5,335.34/x
3. Step 3: Cross multiply
   9,112.10x = 12,570.26 × 5,335.34
4. Step 4: Simplify right side
   9,112.10x = 67,066,521.46
5. Step 5: Solve for x
   x = 67,066,521.46/9,112.10
6. Step 6: Final answer
   x = 7,360.16