Finding the Fourth Proportional to 31,050.42, 42,849.78 and 16,903.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,050.42 : 42,849.78 = 16,903.32 : x
2. Step 2: Convert to fraction form
   31,050.42/42,849.78 = 16,903.32/x
3. Step 3: Cross multiply
   31,050.42x = 42,849.78 × 16,903.32
4. Step 4: Simplify right side
   31,050.42x = 724,303,543.27
5. Step 5: Solve for x
   x = 724,303,543.27/31,050.42
6. Step 6: Final answer
   x = 23,326.69