Finding the Fourth Proportional to 21,830.86, 32,747.10 and 7,039.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,830.86 : 32,747.10 = 7,039.98 : x
2. Step 2: Convert to fraction form
   21,830.86/32,747.10 = 7,039.98/x
3. Step 3: Cross multiply
   21,830.86x = 32,747.10 × 7,039.98
4. Step 4: Simplify right side
   21,830.86x = 230,538,929.06
5. Step 5: Solve for x
   x = 230,538,929.06/21,830.86
6. Step 6: Final answer
   x = 10,560.23