Finding the Fourth Proportional to 443,779.50, 612,415.71 and 242,575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,779.50 : 612,415.71 = 242,575.50 : x
2. Step 2: Convert to fraction form
   443,779.50/612,415.71 = 242,575.50/x
3. Step 3: Cross multiply
   443,779.50x = 612,415.71 × 242,575.50
4. Step 4: Simplify right side
   443,779.50x = 148,557,047,061.11
5. Step 5: Solve for x
   x = 148,557,047,061.11/443,779.50
6. Step 6: Final answer
   x = 334,754.19