Finding the Fourth Proportional to 9,374.58, 12,938.24 and 9,066.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,374.58 : 12,938.24 = 9,066.92 : x
2. Step 2: Convert to fraction form
   9,374.58/12,938.24 = 9,066.92/x
3. Step 3: Cross multiply
   9,374.58x = 12,938.24 × 9,066.92
4. Step 4: Simplify right side
   9,374.58x = 117,309,987.02
5. Step 5: Solve for x
   x = 117,309,987.02/9,374.58
6. Step 6: Final answer
   x = 12,513.63