Finding the Fourth Proportional to 19,531.50, 29,298.06 and 5,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,531.50 : 29,298.06 = 5,680.50 : x
2. Step 2: Convert to fraction form
   19,531.50/29,298.06 = 5,680.50/x
3. Step 3: Cross multiply
   19,531.50x = 29,298.06 × 5,680.50
4. Step 4: Simplify right side
   19,531.50x = 166,427,629.83
5. Step 5: Solve for x
   x = 166,427,629.83/19,531.50
6. Step 6: Final answer
   x = 8,520.99