Finding the Fourth Proportional to 21,051,401.97, 31,532,331.60 and 10,105,455.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,051,401.97 : 31,532,331.60 = 10,105,455.59 : x
2. Step 2: Convert to fraction form
   21,051,401.97/31,532,331.60 = 10,105,455.59/x
3. Step 3: Cross multiply
   21,051,401.97x = 31,532,331.60 × 10,105,455.59
4. Step 4: Simplify right side
   21,051,401.97x = 318,648,576,475,292
5. Step 5: Solve for x
   x = 318,648,576,475,292/21,051,401.97
6. Step 6: Final answer
   x = 15,136,691.46