Finding the Fourth Proportional to 90,672.58, 136,008.69 and 24,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,672.58 : 136,008.69 = 24,112.72 : x
2. Step 2: Convert to fraction form
   90,672.58/136,008.69 = 24,112.72/x
3. Step 3: Cross multiply
   90,672.58x = 136,008.69 × 24,112.72
4. Step 4: Simplify right side
   90,672.58x = 3,279,539,459.54
5. Step 5: Solve for x
   x = 3,279,539,459.54/90,672.58
6. Step 6: Final answer
   x = 36,169.03