Finding the Fourth Proportional to 21,961,445,590.55, 30,304,677,218.69 and 12,316,567,114.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,961,445,590.55 : 30,304,677,218.69 = 12,316,567,114.78 : x
2. Step 2: Convert to fraction form
   21,961,445,590.55/30,304,677,218.69 = 12,316,567,114.78/x
3. Step 3: Cross multiply
   21,961,445,590.55x = 30,304,677,218.69 × 12,316,567,114.78
4. Step 4: Simplify right side
   21,961,445,590.55x = 373,249,590,855,617,740,800
5. Step 5: Solve for x
   x = 373,249,590,855,617,740,800/21,961,445,590.55
6. Step 6: Final answer
   x = 16,995,674,957.59