Finding the Fourth Proportional to 68,729, 103,097.40 and 21,348.58

Step by Step Solution

1. Step 1: Write the proportion equation
   68,729 : 103,097.40 = 21,348.58 : x
2. Step 2: Convert to fraction form
   68,729/103,097.40 = 21,348.58/x
3. Step 3: Cross multiply
   68,729x = 103,097.40 × 21,348.58
4. Step 4: Simplify right side
   68,729x = 2,200,983,091.69
5. Step 5: Solve for x
   x = 2,200,983,091.69/68,729
6. Step 6: Final answer
   x = 32,024.08