Finding the Fourth Proportional to 371,822,980.72, 513,105,411.36 and 202,271,596.96

Step by Step Solution

1. Step 1: Write the proportion equation
   371,822,980.72 : 513,105,411.36 = 202,271,596.96 : x
2. Step 2: Convert to fraction form
   371,822,980.72/513,105,411.36 = 202,271,596.96/x
3. Step 3: Cross multiply
   371,822,980.72x = 513,105,411.36 × 202,271,596.96
4. Step 4: Simplify right side
   371,822,980.72x = 103,786,650,964,604,928
5. Step 5: Solve for x
   x = 103,786,650,964,604,928/371,822,980.72
6. Step 6: Final answer
   x = 279,129,199.50