Finding the Fourth Proportional to 12,927.31, 17,841.63 and 7,894.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,927.31 : 17,841.63 = 7,894.45 : x
2. Step 2: Convert to fraction form
   12,927.31/17,841.63 = 7,894.45/x
3. Step 3: Cross multiply
   12,927.31x = 17,841.63 × 7,894.45
4. Step 4: Simplify right side
   12,927.31x = 140,849,855.95
5. Step 5: Solve for x
   x = 140,849,855.95/12,927.31
6. Step 6: Final answer
   x = 10,895.53