Finding the Fourth Proportional to 23,499.14, 32,428.86 and 12,888.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.14 : 32,428.86 = 12,888.86 : x
2. Step 2: Convert to fraction form
   23,499.14/32,428.86 = 12,888.86/x
3. Step 3: Cross multiply
   23,499.14x = 32,428.86 × 12,888.86
4. Step 4: Simplify right side
   23,499.14x = 417,971,036.50
5. Step 5: Solve for x
   x = 417,971,036.50/23,499.14
6. Step 6: Final answer
   x = 17,786.65