Finding the Fourth Proportional to 12,360.42, 17,060.56 and 7,641.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,360.42 : 17,060.56 = 7,641.94 : x
2. Step 2: Convert to fraction form
   12,360.42/17,060.56 = 7,641.94/x
3. Step 3: Cross multiply
   12,360.42x = 17,060.56 × 7,641.94
4. Step 4: Simplify right side
   12,360.42x = 130,375,775.89
5. Step 5: Solve for x
   x = 130,375,775.89/12,360.42
6. Step 6: Final answer
   x = 10,547.84