Finding the Fourth Proportional to 9,412.30, 12,981.72 and 6,893.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.30 : 12,981.72 = 6,893.51 : x
2. Step 2: Convert to fraction form
   9,412.30/12,981.72 = 6,893.51/x
3. Step 3: Cross multiply
   9,412.30x = 12,981.72 × 6,893.51
4. Step 4: Simplify right side
   9,412.30x = 89,489,538.80
5. Step 5: Solve for x
   x = 89,489,538.80/9,412.30
6. Step 6: Final answer
   x = 9,507.72