Finding the Fourth Proportional to 21,724,128.72, 32,573,910.24 and 7,147,103.58

Step by Step Solution

1. Step 1: Write the proportion equation
   21,724,128.72 : 32,573,910.24 = 7,147,103.58 : x
2. Step 2: Convert to fraction form
   21,724,128.72/32,573,910.24 = 7,147,103.58/x
3. Step 3: Cross multiply
   21,724,128.72x = 32,573,910.24 × 7,147,103.58
4. Step 4: Simplify right side
   21,724,128.72x = 232,809,110,490,902.66
5. Step 5: Solve for x
   x = 232,809,110,490,902.66/21,724,128.72
6. Step 6: Final answer
   x = 10,716,614.39