Finding the Fourth Proportional to 31,783.50, 43,830.72 and 19,034.64

Step by Step Solution

1. Step 1: Write the proportion equation
   31,783.50 : 43,830.72 = 19,034.64 : x
2. Step 2: Convert to fraction form
   31,783.50/43,830.72 = 19,034.64/x
3. Step 3: Cross multiply
   31,783.50x = 43,830.72 × 19,034.64
4. Step 4: Simplify right side
   31,783.50x = 834,301,976.14
5. Step 5: Solve for x
   x = 834,301,976.14/31,783.50
6. Step 6: Final answer
   x = 26,249.53