Finding the Fourth Proportional to 12,983.90, 19,460.39 and 7,441.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.90 : 19,460.39 = 7,441.07 : x
2. Step 2: Convert to fraction form
   12,983.90/19,460.39 = 7,441.07/x
3. Step 3: Cross multiply
   12,983.90x = 19,460.39 × 7,441.07
4. Step 4: Simplify right side
   12,983.90x = 144,805,989.71
5. Step 5: Solve for x
   x = 144,805,989.71/12,983.90
6. Step 6: Final answer
   x = 11,152.74