Finding the Fourth Proportional to 221,979.24, 333,018.72 and 64,219.98

Step by Step Solution

1. Step 1: Write the proportion equation
   221,979.24 : 333,018.72 = 64,219.98 : x
2. Step 2: Convert to fraction form
   221,979.24/333,018.72 = 64,219.98/x
3. Step 3: Cross multiply
   221,979.24x = 333,018.72 × 64,219.98
4. Step 4: Simplify right side
   221,979.24x = 21,386,455,538.03
5. Step 5: Solve for x
   x = 21,386,455,538.03/221,979.24
6. Step 6: Final answer
   x = 96,344.39