Finding the Fourth Proportional to 35,196.93, 52,757.00 and 12,991.59

Step by Step Solution

1. Step 1: Write the proportion equation
   35,196.93 : 52,757.00 = 12,991.59 : x
2. Step 2: Convert to fraction form
   35,196.93/52,757.00 = 12,991.59/x
3. Step 3: Cross multiply
   35,196.93x = 52,757.00 × 12,991.59
4. Step 4: Simplify right side
   35,196.93x = 685,397,248.67
5. Step 5: Solve for x
   x = 685,397,248.67/35,196.93
6. Step 6: Final answer
   x = 19,473.21