Finding the Fourth Proportional to 91,147.84, 136,714.56 and 28,818.88

Step by Step Solution

1. Step 1: Write the proportion equation
   91,147.84 : 136,714.56 = 28,818.88 : x
2. Step 2: Convert to fraction form
   91,147.84/136,714.56 = 28,818.88/x
3. Step 3: Cross multiply
   91,147.84x = 136,714.56 × 28,818.88
4. Step 4: Simplify right side
   91,147.84x = 3,939,960,498.89
5. Step 5: Solve for x
   x = 3,939,960,498.89/91,147.84
6. Step 6: Final answer
   x = 43,226.04