Finding the Fourth Proportional to 68,111.32, 102,166.86 and 21,367.72

Step by Step Solution

1. Step 1: Write the proportion equation
   68,111.32 : 102,166.86 = 21,367.72 : x
2. Step 2: Convert to fraction form
   68,111.32/102,166.86 = 21,367.72/x
3. Step 3: Cross multiply
   68,111.32x = 102,166.86 × 21,367.72
4. Step 4: Simplify right side
   68,111.32x = 2,183,072,857.76
5. Step 5: Solve for x
   x = 2,183,072,857.76/68,111.32
6. Step 6: Final answer
   x = 32,051.54