Finding the Fourth Proportional to 21,730,567.69, 29,958,218.31 and 17,335,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,730,567.69 : 29,958,218.31 = 17,335,211.50 : x
2. Step 2: Convert to fraction form
   21,730,567.69/29,958,218.31 = 17,335,211.50/x
3. Step 3: Cross multiply
   21,730,567.69x = 29,958,218.31 × 17,335,211.50
4. Step 4: Simplify right side
   21,730,567.69x = 519,332,050,567,022.56
5. Step 5: Solve for x
   x = 519,332,050,567,022.56/21,730,567.69
6. Step 6: Final answer
   x = 23,898,687.69