Finding the Fourth Proportional to 31,050.66, 42,848.82 and 16,903.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,050.66 : 42,848.82 = 16,903.20 : x
2. Step 2: Convert to fraction form
   31,050.66/42,848.82 = 16,903.20/x
3. Step 3: Cross multiply
   31,050.66x = 42,848.82 × 16,903.20
4. Step 4: Simplify right side
   31,050.66x = 724,282,174.22
5. Step 5: Solve for x
   x = 724,282,174.22/31,050.66
6. Step 6: Final answer
   x = 23,325.82