Finding the Fourth Proportional to 23,385.61, 32,272.95 and 12,776.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,385.61 : 32,272.95 = 12,776.05 : x
2. Step 2: Convert to fraction form
   23,385.61/32,272.95 = 12,776.05/x
3. Step 3: Cross multiply
   23,385.61x = 32,272.95 × 12,776.05
4. Step 4: Simplify right side
   23,385.61x = 412,320,822.85
5. Step 5: Solve for x
   x = 412,320,822.85/23,385.61
6. Step 6: Final answer
   x = 17,631.39