Finding the Fourth Proportional to 8,588.72, 12,941.58 and 7,062.90

Step by Step Solution

1. Step 1: Write the proportion equation
   8,588.72 : 12,941.58 = 7,062.90 : x
2. Step 2: Convert to fraction form
   8,588.72/12,941.58 = 7,062.90/x
3. Step 3: Cross multiply
   8,588.72x = 12,941.58 × 7,062.90
4. Step 4: Simplify right side
   8,588.72x = 91,404,985.36
5. Step 5: Solve for x
   x = 91,404,985.36/8,588.72
6. Step 6: Final answer
   x = 10,642.45