Finding the Fourth Proportional to 20,733.02, 28,612.14 and 12,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,733.02 : 28,612.14 = 12,667.98 : x
2. Step 2: Convert to fraction form
   20,733.02/28,612.14 = 12,667.98/x
3. Step 3: Cross multiply
   20,733.02x = 28,612.14 × 12,667.98
4. Step 4: Simplify right side
   20,733.02x = 362,458,017.28
5. Step 5: Solve for x
   x = 362,458,017.28/20,733.02
6. Step 6: Final answer
   x = 17,482.17