Finding the Fourth Proportional to 47,298.05, 70,938.56 and 12,235.58

Step by Step Solution

1. Step 1: Write the proportion equation
   47,298.05 : 70,938.56 = 12,235.58 : x
2. Step 2: Convert to fraction form
   47,298.05/70,938.56 = 12,235.58/x
3. Step 3: Cross multiply
   47,298.05x = 70,938.56 × 12,235.58
4. Step 4: Simplify right side
   47,298.05x = 867,974,071.27
5. Step 5: Solve for x
   x = 867,974,071.27/47,298.05
6. Step 6: Final answer
   x = 18,351.16