Finding the Fourth Proportional to 32,856.32, 49,284.43 and 13,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   32,856.32 : 49,284.43 = 13,139.50 : x
2. Step 2: Convert to fraction form
   32,856.32/49,284.43 = 13,139.50/x
3. Step 3: Cross multiply
   32,856.32x = 49,284.43 × 13,139.50
4. Step 4: Simplify right side
   32,856.32x = 647,572,767.99
5. Step 5: Solve for x
   x = 647,572,767.99/32,856.32
6. Step 6: Final answer
   x = 19,709.23