Finding the Fourth Proportional to 91,006.56, 136,523.52 and 28,676.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,006.56 : 136,523.52 = 28,676.16 : x
2. Step 2: Convert to fraction form
   91,006.56/136,523.52 = 28,676.16/x
3. Step 3: Cross multiply
   91,006.56x = 136,523.52 × 28,676.16
4. Step 4: Simplify right side
   91,006.56x = 3,914,970,303.28
5. Step 5: Solve for x
   x = 3,914,970,303.28/91,006.56
6. Step 6: Final answer
   x = 43,018.55