Finding the Fourth Proportional to 21,848,678.37, 30,161,379.82 and 12,679,549.65

Step by Step Solution

1. Step 1: Write the proportion equation
   21,848,678.37 : 30,161,379.82 = 12,679,549.65 : x
2. Step 2: Convert to fraction form
   21,848,678.37/30,161,379.82 = 12,679,549.65/x
3. Step 3: Cross multiply
   21,848,678.37x = 30,161,379.82 × 12,679,549.65
4. Step 4: Simplify right side
   21,848,678.37x = 382,432,713,047,300.38
5. Step 5: Solve for x
   x = 382,432,713,047,300.38/21,848,678.37
6. Step 6: Final answer
   x = 17,503,700.06