Finding the Fourth Proportional to 31,485.77, 46,981.98 and 28,176.11

Step by Step Solution

1. Step 1: Write the proportion equation
   31,485.77 : 46,981.98 = 28,176.11 : x
2. Step 2: Convert to fraction form
   31,485.77/46,981.98 = 28,176.11/x
3. Step 3: Cross multiply
   31,485.77x = 46,981.98 × 28,176.11
4. Step 4: Simplify right side
   31,485.77x = 1,323,769,436.50
5. Step 5: Solve for x
   x = 1,323,769,436.50/31,485.77
6. Step 6: Final answer
   x = 42,043.42