Finding the Fourth Proportional to 91,606.83, 137,411.96 and 28,429.01

Step by Step Solution

1. Step 1: Write the proportion equation
   91,606.83 : 137,411.96 = 28,429.01 : x
2. Step 2: Convert to fraction form
   91,606.83/137,411.96 = 28,429.01/x
3. Step 3: Cross multiply
   91,606.83x = 137,411.96 × 28,429.01
4. Step 4: Simplify right side
   91,606.83x = 3,906,486,399.56
5. Step 5: Solve for x
   x = 3,906,486,399.56/91,606.83
6. Step 6: Final answer
   x = 42,644.05