Finding the Fourth Proportional to 12,932.88, 17,846.90 and 7,905.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,932.88 : 17,846.90 = 7,905.52 : x
2. Step 2: Convert to fraction form
   12,932.88/17,846.90 = 7,905.52/x
3. Step 3: Cross multiply
   12,932.88x = 17,846.90 × 7,905.52
4. Step 4: Simplify right side
   12,932.88x = 141,089,024.89
5. Step 5: Solve for x
   x = 141,089,024.89/12,932.88
6. Step 6: Final answer
   x = 10,909.33