Finding the Fourth Proportional to 21,856.58, 32,777.91 and 7,061.99

Step by Step Solution

1. Step 1: Write the proportion equation
   21,856.58 : 32,777.91 = 7,061.99 : x
2. Step 2: Convert to fraction form
   21,856.58/32,777.91 = 7,061.99/x
3. Step 3: Cross multiply
   21,856.58x = 32,777.91 × 7,061.99
4. Step 4: Simplify right side
   21,856.58x = 231,477,354.59
5. Step 5: Solve for x
   x = 231,477,354.59/21,856.58
6. Step 6: Final answer
   x = 10,590.74