Finding the Fourth Proportional to 443,886, 612,577.80 and 242,694.96

Step by Step Solution

1. Step 1: Write the proportion equation
   443,886 : 612,577.80 = 242,694.96 : x
2. Step 2: Convert to fraction form
   443,886/612,577.80 = 242,694.96/x
3. Step 3: Cross multiply
   443,886x = 612,577.80 × 242,694.96
4. Step 4: Simplify right side
   443,886x = 148,669,544,667.89
5. Step 5: Solve for x
   x = 148,669,544,667.89/443,886
6. Step 6: Final answer
   x = 334,927.31