Finding the Fourth Proportional to 2,615,812,450.76, 3,609,794,830.20 and 1,426,378,412.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,812,450.76 : 3,609,794,830.20 = 1,426,378,412.72 : x
2. Step 2: Convert to fraction form
   2,615,812,450.76/3,609,794,830.20 = 1,426,378,412.72/x
3. Step 3: Cross multiply
   2,615,812,450.76x = 3,609,794,830.20 × 1,426,378,412.72
4. Step 4: Simplify right side
   2,615,812,450.76x = 5,148,933,420,145,538,048
5. Step 5: Solve for x
   x = 5,148,933,420,145,538,048/2,615,812,450.76
6. Step 6: Final answer
   x = 1,968,387,840.13