Finding the Fourth Proportional to 9,146.88, 12,623.58 and 5,612.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.88 : 12,623.58 = 5,612.40 : x
2. Step 2: Convert to fraction form
   9,146.88/12,623.58 = 5,612.40/x
3. Step 3: Cross multiply
   9,146.88x = 12,623.58 × 5,612.40
4. Step 4: Simplify right side
   9,146.88x = 70,848,580.39
5. Step 5: Solve for x
   x = 70,848,580.39/9,146.88
6. Step 6: Final answer
   x = 7,745.66