Finding the Fourth Proportional to 11,936.74, 16,479.58 and 7,970.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,936.74 : 16,479.58 = 7,970.98 : x
2. Step 2: Convert to fraction form
   11,936.74/16,479.58 = 7,970.98/x
3. Step 3: Cross multiply
   11,936.74x = 16,479.58 × 7,970.98
4. Step 4: Simplify right side
   11,936.74x = 131,358,402.59
5. Step 5: Solve for x
   x = 131,358,402.59/11,936.74
6. Step 6: Final answer
   x = 11,004.55