Finding the Fourth Proportional to 2,140,152,357.12, 2,953,420,713.92 and 1,200,405,222.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,152,357.12 : 2,953,420,713.92 = 1,200,405,222.24 : x
2. Step 2: Convert to fraction form
   2,140,152,357.12/2,953,420,713.92 = 1,200,405,222.24/x
3. Step 3: Cross multiply
   2,140,152,357.12x = 2,953,420,713.92 × 1,200,405,222.24
4. Step 4: Simplify right side
   2,140,152,357.12x = 3,545,301,648,461,357,056
5. Step 5: Solve for x
   x = 3,545,301,648,461,357,056/2,140,152,357.12
6. Step 6: Final answer
   x = 1,656,565,074.29