Finding the Fourth Proportional to 31,150.76, 46,680.06 and 18,677.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.76 : 46,680.06 = 18,677.48 : x
2. Step 2: Convert to fraction form
   31,150.76/46,680.06 = 18,677.48/x
3. Step 3: Cross multiply
   31,150.76x = 46,680.06 × 18,677.48
4. Step 4: Simplify right side
   31,150.76x = 871,865,887.05
5. Step 5: Solve for x
   x = 871,865,887.05/31,150.76
6. Step 6: Final answer
   x = 27,988.59