Finding the Fourth Proportional to 23,680,570.42, 32,679,186.78 and 12,815,554.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,680,570.42 : 32,679,186.78 = 12,815,554.42 : x
2. Step 2: Convert to fraction form
   23,680,570.42/32,679,186.78 = 12,815,554.42/x
3. Step 3: Cross multiply
   23,680,570.42x = 32,679,186.78 × 12,815,554.42
4. Step 4: Simplify right side
   23,680,570.42x = 418,801,896,580,434.56
5. Step 5: Solve for x
   x = 418,801,896,580,434.56/23,680,570.42
6. Step 6: Final answer
   x = 17,685,464.88