Finding the Fourth Proportional to 42,876.72, 59,226.12 and 31,569.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,876.72 : 59,226.12 = 31,569.12 : x
2. Step 2: Convert to fraction form
   42,876.72/59,226.12 = 31,569.12/x
3. Step 3: Cross multiply
   42,876.72x = 59,226.12 × 31,569.12
4. Step 4: Simplify right side
   42,876.72x = 1,869,716,489.41
5. Step 5: Solve for x
   x = 1,869,716,489.41/42,876.72
6. Step 6: Final answer
   x = 43,606.80