Finding the Fourth Proportional to 39,970.32, 55,158.72 and 22,065.32

Step by Step Solution

1. Step 1: Write the proportion equation
   39,970.32 : 55,158.72 = 22,065.32 : x
2. Step 2: Convert to fraction form
   39,970.32/55,158.72 = 22,065.32/x
3. Step 3: Cross multiply
   39,970.32x = 55,158.72 × 22,065.32
4. Step 4: Simplify right side
   39,970.32x = 1,217,094,807.59
5. Step 5: Solve for x
   x = 1,217,094,807.59/39,970.32
6. Step 6: Final answer
   x = 30,449.96