Finding the Fourth Proportional to 12,966.53, 17,925.62 and 12,848.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,966.53 : 17,925.62 = 12,848.07 : x
2. Step 2: Convert to fraction form
   12,966.53/17,925.62 = 12,848.07/x
3. Step 3: Cross multiply
   12,966.53x = 17,925.62 × 12,848.07
4. Step 4: Simplify right side
   12,966.53x = 230,309,556.31
5. Step 5: Solve for x
   x = 230,309,556.31/12,966.53
6. Step 6: Final answer
   x = 17,761.86