Finding the Fourth Proportional to 45,109.32, 67,670.48 and 13,947

Step by Step Solution

1. Step 1: Write the proportion equation
   45,109.32 : 67,670.48 = 13,947 : x
2. Step 2: Convert to fraction form
   45,109.32/67,670.48 = 13,947/x
3. Step 3: Cross multiply
   45,109.32x = 67,670.48 × 13,947
4. Step 4: Simplify right side
   45,109.32x = 943,800,184.56
5. Step 5: Solve for x
   x = 943,800,184.56/45,109.32
6. Step 6: Final answer
   x = 20,922.51