Finding the Fourth Proportional to 23,680,569.42, 32,679,185.40 and 12,815,553.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,680,569.42 : 32,679,185.40 = 12,815,553.42 : x
2. Step 2: Convert to fraction form
   23,680,569.42/32,679,185.40 = 12,815,553.42/x
3. Step 3: Cross multiply
   23,680,569.42x = 32,679,185.40 × 12,815,553.42
4. Step 4: Simplify right side
   23,680,569.42x = 418,801,846,215,784.06
5. Step 5: Solve for x
   x = 418,801,846,215,784.06/23,680,569.42
6. Step 6: Final answer
   x = 17,685,463.50