Finding the Fourth Proportional to 371,823,123.72, 513,105,608.52 and 202,271,739.96

Step by Step Solution

1. Step 1: Write the proportion equation
   371,823,123.72 : 513,105,608.52 = 202,271,739.96 : x
2. Step 2: Convert to fraction form
   371,823,123.72/513,105,608.52 = 202,271,739.96/x
3. Step 3: Cross multiply
   371,823,123.72x = 513,105,608.52 × 202,271,739.96
4. Step 4: Simplify right side
   371,823,123.72x = 103,786,764,218,575,008
5. Step 5: Solve for x
   x = 103,786,764,218,575,008/371,823,123.72
6. Step 6: Final answer
   x = 279,129,396.74