Finding the Fourth Proportional to 31,165.02, 42,945.93 and 22,196.70

Step by Step Solution

1. Step 1: Write the proportion equation
   31,165.02 : 42,945.93 = 22,196.70 : x
2. Step 2: Convert to fraction form
   31,165.02/42,945.93 = 22,196.70/x
3. Step 3: Cross multiply
   31,165.02x = 42,945.93 × 22,196.70
4. Step 4: Simplify right side
   31,165.02x = 953,257,924.43
5. Step 5: Solve for x
   x = 953,257,924.43/31,165.02
6. Step 6: Final answer
   x = 30,587.43