Finding the Fourth Proportional to 45,196.31, 67,706.21 and 21,470.09

Step by Step Solution

1. Step 1: Write the proportion equation
   45,196.31 : 67,706.21 = 21,470.09 : x
2. Step 2: Convert to fraction form
   45,196.31/67,706.21 = 21,470.09/x
3. Step 3: Cross multiply
   45,196.31x = 67,706.21 × 21,470.09
4. Step 4: Simplify right side
   45,196.31x = 1,453,657,976.38
5. Step 5: Solve for x
   x = 1,453,657,976.38/45,196.31
6. Step 6: Final answer
   x = 32,163.20