Finding the Fourth Proportional to 31,047.36, 42,845.52 and 16,900.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.36 : 42,845.52 = 16,900.32 : x
2. Step 2: Convert to fraction form
   31,047.36/42,845.52 = 16,900.32/x
3. Step 3: Cross multiply
   31,047.36x = 42,845.52 × 16,900.32
4. Step 4: Simplify right side
   31,047.36x = 724,102,998.57
5. Step 5: Solve for x
   x = 724,102,998.57/31,047.36
6. Step 6: Final answer
   x = 23,322.53