Finding the Fourth Proportional to 21,852.32, 32,767.86 and 7,812.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,852.32 : 32,767.86 = 7,812.05 : x
2. Step 2: Convert to fraction form
   21,852.32/32,767.86 = 7,812.05/x
3. Step 3: Cross multiply
   21,852.32x = 32,767.86 × 7,812.05
4. Step 4: Simplify right side
   21,852.32x = 255,984,160.71
5. Step 5: Solve for x
   x = 255,984,160.71/21,852.32
6. Step 6: Final answer
   x = 11,714.28