Finding the Fourth Proportional to 21,116,673.25, 31,686,992.58 and 11,401,156.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,116,673.25 : 31,686,992.58 = 11,401,156.76 : x
2. Step 2: Convert to fraction form
   21,116,673.25/31,686,992.58 = 11,401,156.76/x
3. Step 3: Cross multiply
   21,116,673.25x = 31,686,992.58 × 11,401,156.76
4. Step 4: Simplify right side
   21,116,673.25x = 361,268,369,499,101.88
5. Step 5: Solve for x
   x = 361,268,369,499,101.88/21,116,673.25
6. Step 6: Final answer
   x = 17,108,204.75