Finding the Fourth Proportional to 42,019.37, 57,985.98 and 22,899.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,019.37 : 57,985.98 = 22,899.31 : x
2. Step 2: Convert to fraction form
   42,019.37/57,985.98 = 22,899.31/x
3. Step 3: Cross multiply
   42,019.37x = 57,985.98 × 22,899.31
4. Step 4: Simplify right side
   42,019.37x = 1,327,838,786.71
5. Step 5: Solve for x
   x = 1,327,838,786.71/42,019.37
6. Step 6: Final answer
   x = 31,600.64