Finding the Fourth Proportional to 2,609,921,782.50, 3,601,691,859.24 and 1,420,499,279.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,921,782.50 : 3,601,691,859.24 = 1,420,499,279.58 : x
2. Step 2: Convert to fraction form
   2,609,921,782.50/3,601,691,859.24 = 1,420,499,279.58/x
3. Step 3: Cross multiply
   2,609,921,782.50x = 3,601,691,859.24 × 1,420,499,279.58
4. Step 4: Simplify right side
   2,609,921,782.50x = 5,116,200,691,319,570,432
5. Step 5: Solve for x
   x = 5,116,200,691,319,570,432/2,609,921,782.50
6. Step 6: Final answer
   x = 1,960,288,896.63