Finding the Fourth Proportional to 12,993.50, 19,498.90 and 4,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,993.50 : 19,498.90 = 4,785.50 : x
2. Step 2: Convert to fraction form
   12,993.50/19,498.90 = 4,785.50/x
3. Step 3: Cross multiply
   12,993.50x = 19,498.90 × 4,785.50
4. Step 4: Simplify right side
   12,993.50x = 93,311,985.95
5. Step 5: Solve for x
   x = 93,311,985.95/12,993.50
6. Step 6: Final answer
   x = 7,181.44