Finding the Fourth Proportional to 72,448.86, 108,661.62 and 19,846.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,448.86 : 108,661.62 = 19,846.05 : x
2. Step 2: Convert to fraction form
   72,448.86/108,661.62 = 19,846.05/x
3. Step 3: Cross multiply
   72,448.86x = 108,661.62 × 19,846.05
4. Step 4: Simplify right side
   72,448.86x = 2,156,503,943.60
5. Step 5: Solve for x
   x = 2,156,503,943.60/72,448.86
6. Step 6: Final answer
   x = 29,765.88