Finding the Fourth Proportional to 2,101,463,185.63, 3,152,990,904.56 and 1,261,692,375.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101,463,185.63 : 3,152,990,904.56 = 1,261,692,375.86 : x
2. Step 2: Convert to fraction form
   2,101,463,185.63/3,152,990,904.56 = 1,261,692,375.86/x
3. Step 3: Cross multiply
   2,101,463,185.63x = 3,152,990,904.56 × 1,261,692,375.86
4. Step 4: Simplify right side
   2,101,463,185.63x = 3,978,104,585,439,276,544
5. Step 5: Solve for x
   x = 3,978,104,585,439,276,544/2,101,463,185.63
6. Step 6: Final answer
   x = 1,893,016,548.02