Finding the Fourth Proportional to 23,588.51, 32,551.38 and 12,978.11

Step by Step Solution

1. Step 1: Write the proportion equation
   23,588.51 : 32,551.38 = 12,978.11 : x
2. Step 2: Convert to fraction form
   23,588.51/32,551.38 = 12,978.11/x
3. Step 3: Cross multiply
   23,588.51x = 32,551.38 × 12,978.11
4. Step 4: Simplify right side
   23,588.51x = 422,455,227.53
5. Step 5: Solve for x
   x = 422,455,227.53/23,588.51
6. Step 6: Final answer
   x = 17,909.37