Finding the Fourth Proportional to 8,392,010,042.64, 12,581,809,308.72 and 5,075,087,204.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,392,010,042.64 : 12,581,809,308.72 = 5,075,087,204.28 : x
2. Step 2: Convert to fraction form
   8,392,010,042.64/12,581,809,308.72 = 5,075,087,204.28/x
3. Step 3: Cross multiply
   8,392,010,042.64x = 12,581,809,308.72 × 5,075,087,204.28
4. Step 4: Simplify right side
   8,392,010,042.64x = 63,853,779,429,375,860,736
5. Step 5: Solve for x
   x = 63,853,779,429,375,860,736/8,392,010,042.64
6. Step 6: Final answer
   x = 7,608,877,861.79