Finding the Fourth Proportional to 31,061.26, 42,903.13 and 30,594.70

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.26 : 42,903.13 = 30,594.70 : x
2. Step 2: Convert to fraction form
   31,061.26/42,903.13 = 30,594.70/x
3. Step 3: Cross multiply
   31,061.26x = 42,903.13 × 30,594.70
4. Step 4: Simplify right side
   31,061.26x = 1,312,608,391.41
5. Step 5: Solve for x
   x = 1,312,608,391.41/31,061.26
6. Step 6: Final answer
   x = 42,258.70