Finding the Fourth Proportional to 11,758,489,308, 16,215,815,581.20 and 8,581,641,210.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,758,489,308 : 16,215,815,581.20 = 8,581,641,210.72 : x
2. Step 2: Convert to fraction form
   11,758,489,308/16,215,815,581.20 = 8,581,641,210.72/x
3. Step 3: Cross multiply
   11,758,489,308x = 16,215,815,581.20 × 8,581,641,210.72
4. Step 4: Simplify right side
   11,758,489,308x = 139,158,311,257,061,425,152
5. Step 5: Solve for x
   x = 139,158,311,257,061,425,152/11,758,489,308
6. Step 6: Final answer
   x = 11,834,710,022.01