Finding the Fourth Proportional to 31,047.06, 42,847.47 and 17,434.80

Step by Step Solution

1. Step 1: Write the proportion equation
   31,047.06 : 42,847.47 = 17,434.80 : x
2. Step 2: Convert to fraction form
   31,047.06/42,847.47 = 17,434.80/x
3. Step 3: Cross multiply
   31,047.06x = 42,847.47 × 17,434.80
4. Step 4: Simplify right side
   31,047.06x = 747,037,069.96
5. Step 5: Solve for x
   x = 747,037,069.96/31,047.06
6. Step 6: Final answer
   x = 24,061.44