Finding the Fourth Proportional to 13,379,059,196.29, 18,463,587,134.11 and 7,664,448,080.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,379,059,196.29 : 18,463,587,134.11 = 7,664,448,080.78 : x
2. Step 2: Convert to fraction form
   13,379,059,196.29/18,463,587,134.11 = 7,664,448,080.78/x
3. Step 3: Cross multiply
   13,379,059,196.29x = 18,463,587,134.11 × 7,664,448,080.78
4. Step 4: Simplify right side
   13,379,059,196.29x = 141,513,204,974,228,357,120
5. Step 5: Solve for x
   x = 141,513,204,974,228,357,120/13,379,059,196.29
6. Step 6: Final answer
   x = 10,577,216,446.84