Finding the Fourth Proportional to 21,096,738.34, 31,646,332.23 and 8,142,962.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,096,738.34 : 31,646,332.23 = 8,142,962.38 : x
2. Step 2: Convert to fraction form
   21,096,738.34/31,646,332.23 = 8,142,962.38/x
3. Step 3: Cross multiply
   21,096,738.34x = 31,646,332.23 × 8,142,962.38
4. Step 4: Simplify right side
   21,096,738.34x = 257,694,892,813,871.50
5. Step 5: Solve for x
   x = 257,694,892,813,871.50/21,096,738.34
6. Step 6: Final answer
   x = 12,214,916.29