Finding the Fourth Proportional to 16,931.61, 23,365.06 and 9,377.95

Step by Step Solution

1. Step 1: Write the proportion equation
   16,931.61 : 23,365.06 = 9,377.95 : x
2. Step 2: Convert to fraction form
   16,931.61/23,365.06 = 9,377.95/x
3. Step 3: Cross multiply
   16,931.61x = 23,365.06 × 9,377.95
4. Step 4: Simplify right side
   16,931.61x = 219,116,364.43
5. Step 5: Solve for x
   x = 219,116,364.43/16,931.61
6. Step 6: Final answer
   x = 12,941.26