Finding the Fourth Proportional to 2,651,593,233.67, 3,978,065,444.88 and 786,307,068.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651,593,233.67 : 3,978,065,444.88 = 786,307,068.21 : x
2. Step 2: Convert to fraction form
   2,651,593,233.67/3,978,065,444.88 = 786,307,068.21/x
3. Step 3: Cross multiply
   2,651,593,233.67x = 3,978,065,444.88 × 786,307,068.21
4. Step 4: Simplify right side
   2,651,593,233.67x = 3,127,980,977,111,102,464
5. Step 5: Solve for x
   x = 3,127,980,977,111,102,464/2,651,593,233.67
6. Step 6: Final answer
   x = 1,179,660,943.99