Finding the Fourth Proportional to 31,046.76, 42,845.09 and 16,899.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,046.76 : 42,845.09 = 16,899.84 : x
2. Step 2: Convert to fraction form
   31,046.76/42,845.09 = 16,899.84/x
3. Step 3: Cross multiply
   31,046.76x = 42,845.09 × 16,899.84
4. Step 4: Simplify right side
   31,046.76x = 724,075,081.29
5. Step 5: Solve for x
   x = 724,075,081.29/31,046.76
6. Step 6: Final answer
   x = 23,322.08