Finding the Fourth Proportional to 12,943.71, 19,410.77 and 4,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943.71 : 19,410.77 = 4,621.50 : x
2. Step 2: Convert to fraction form
   12,943.71/19,410.77 = 4,621.50/x
3. Step 3: Cross multiply
   12,943.71x = 19,410.77 × 4,621.50
4. Step 4: Simplify right side
   12,943.71x = 89,706,885.11
5. Step 5: Solve for x
   x = 89,706,885.11/12,943.71
6. Step 6: Final answer
   x = 6,930.54