Finding the Fourth Proportional to 2,820,428,752.37, 3,888,089,578.86 and 1,971,018,925.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820,428,752.37 : 3,888,089,578.86 = 1,971,018,925.70 : x
2. Step 2: Convert to fraction form
   2,820,428,752.37/3,888,089,578.86 = 1,971,018,925.70/x
3. Step 3: Cross multiply
   2,820,428,752.37x = 3,888,089,578.86 × 1,971,018,925.70
4. Step 4: Simplify right side
   2,820,428,752.37x = 7,663,498,144,750,003,200
5. Step 5: Solve for x
   x = 7,663,498,144,750,003,200/2,820,428,752.37
6. Step 6: Final answer
   x = 2,717,139,420.14