Finding the Fourth Proportional to 48,530.46, 72,795.72 and 13,470.12

Step by Step Solution

1. Step 1: Write the proportion equation
   48,530.46 : 72,795.72 = 13,470.12 : x
2. Step 2: Convert to fraction form
   48,530.46/72,795.72 = 13,470.12/x
3. Step 3: Cross multiply
   48,530.46x = 72,795.72 × 13,470.12
4. Step 4: Simplify right side
   48,530.46x = 980,567,083.89
5. Step 5: Solve for x
   x = 980,567,083.89/48,530.46
6. Step 6: Final answer
   x = 20,205.19