Finding the Fourth Proportional to 42,914.22, 64,267.40 and 21,798.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,914.22 : 64,267.40 = 21,798.72 : x
2. Step 2: Convert to fraction form
   42,914.22/64,267.40 = 21,798.72/x
3. Step 3: Cross multiply
   42,914.22x = 64,267.40 × 21,798.72
4. Step 4: Simplify right side
   42,914.22x = 1,400,947,057.73
5. Step 5: Solve for x
   x = 1,400,947,057.73/42,914.22
6. Step 6: Final answer
   x = 32,645.29