Finding the Fourth Proportional to 12,848.58, 17,736.50 and 7,814.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,848.58 : 17,736.50 = 7,814.41 : x
2. Step 2: Convert to fraction form
   12,848.58/17,736.50 = 7,814.41/x
3. Step 3: Cross multiply
   12,848.58x = 17,736.50 × 7,814.41
4. Step 4: Simplify right side
   12,848.58x = 138,600,263.43
5. Step 5: Solve for x
   x = 138,600,263.43/12,848.58
6. Step 6: Final answer
   x = 10,787.21