Finding the Fourth Proportional to 12,983.32, 17,916.56 and 7,317.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.32 : 17,916.56 = 7,317.63 : x
2. Step 2: Convert to fraction form
   12,983.32/17,916.56 = 7,317.63/x
3. Step 3: Cross multiply
   12,983.32x = 17,916.56 × 7,317.63
4. Step 4: Simplify right side
   12,983.32x = 131,106,756.95
5. Step 5: Solve for x
   x = 131,106,756.95/12,983.32
6. Step 6: Final answer
   x = 10,098.09