Finding the Fourth Proportional to 9,145.98, 12,612.20 and 7,461.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145.98 : 12,612.20 = 7,461.98 : x
2. Step 2: Convert to fraction form
   9,145.98/12,612.20 = 7,461.98/x
3. Step 3: Cross multiply
   9,145.98x = 12,612.20 × 7,461.98
4. Step 4: Simplify right side
   9,145.98x = 94,111,984.16
5. Step 5: Solve for x
   x = 94,111,984.16/9,145.98
6. Step 6: Final answer
   x = 10,289.98