Finding the Fourth Proportional to 21,110,061,367.62, 29,132,453,582.94 and 12,420,123,065.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,110,061,367.62 : 29,132,453,582.94 = 12,420,123,065.82 : x
2. Step 2: Convert to fraction form
   21,110,061,367.62/29,132,453,582.94 = 12,420,123,065.82/x
3. Step 3: Cross multiply
   21,110,061,367.62x = 29,132,453,582.94 × 12,420,123,065.82
4. Step 4: Simplify right side
   21,110,061,367.62x = 361,828,658,709,403,598,848
5. Step 5: Solve for x
   x = 361,828,658,709,403,598,848/21,110,061,367.62
6. Step 6: Final answer
   x = 17,140,104,541.07