Finding the Fourth Proportional to 31,086.55, 46,631.49 and 8,903.17

Step by Step Solution

1. Step 1: Write the proportion equation
   31,086.55 : 46,631.49 = 8,903.17 : x
2. Step 2: Convert to fraction form
   31,086.55/46,631.49 = 8,903.17/x
3. Step 3: Cross multiply
   31,086.55x = 46,631.49 × 8,903.17
4. Step 4: Simplify right side
   31,086.55x = 415,168,082.82
5. Step 5: Solve for x
   x = 415,168,082.82/31,086.55
6. Step 6: Final answer
   x = 13,355.23