Finding the Fourth Proportional to 34,685.72, 47,866.42 and 18,770.17

Step by Step Solution

1. Step 1: Write the proportion equation
   34,685.72 : 47,866.42 = 18,770.17 : x
2. Step 2: Convert to fraction form
   34,685.72/47,866.42 = 18,770.17/x
3. Step 3: Cross multiply
   34,685.72x = 47,866.42 × 18,770.17
4. Step 4: Simplify right side
   34,685.72x = 898,460,840.69
5. Step 5: Solve for x
   x = 898,460,840.69/34,685.72
6. Step 6: Final answer
   x = 25,902.90