Finding the Fourth Proportional to 42,967.16, 64,445.96 and 13,382.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,967.16 : 64,445.96 = 13,382.52 : x
2. Step 2: Convert to fraction form
   42,967.16/64,445.96 = 13,382.52/x
3. Step 3: Cross multiply
   42,967.16x = 64,445.96 × 13,382.52
4. Step 4: Simplify right side
   42,967.16x = 862,449,348.62
5. Step 5: Solve for x
   x = 862,449,348.62/42,967.16
6. Step 6: Final answer
   x = 20,072.29