Finding the Fourth Proportional to 2,686,088,691.27, 3,706,810,081.74 and 1,557,277,914.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686,088,691.27 : 3,706,810,081.74 = 1,557,277,914.15 : x
2. Step 2: Convert to fraction form
   2,686,088,691.27/3,706,810,081.74 = 1,557,277,914.15/x
3. Step 3: Cross multiply
   2,686,088,691.27x = 3,706,810,081.74 × 1,557,277,914.15
4. Step 4: Simplify right side
   2,686,088,691.27x = 5,772,533,472,242,257,920
5. Step 5: Solve for x
   x = 5,772,533,472,242,257,920/2,686,088,691.27
6. Step 6: Final answer
   x = 2,149,047,978.57