Finding the Fourth Proportional to 55,256.34, 82,909.18 and 28,955

Step by Step Solution

1. Step 1: Write the proportion equation
   55,256.34 : 82,909.18 = 28,955 : x
2. Step 2: Convert to fraction form
   55,256.34/82,909.18 = 28,955/x
3. Step 3: Cross multiply
   55,256.34x = 82,909.18 × 28,955
4. Step 4: Simplify right side
   55,256.34x = 2,400,635,306.90
5. Step 5: Solve for x
   x = 2,400,635,306.90/55,256.34
6. Step 6: Final answer
   x = 43,445.43