Finding the Fourth Proportional to 91,591.97, 137,407.67 and 28,410.81

Step by Step Solution

1. Step 1: Write the proportion equation
   91,591.97 : 137,407.67 = 28,410.81 : x
2. Step 2: Convert to fraction form
   91,591.97/137,407.67 = 28,410.81/x
3. Step 3: Cross multiply
   91,591.97x = 137,407.67 × 28,410.81
4. Step 4: Simplify right side
   91,591.97x = 3,903,863,062.86
5. Step 5: Solve for x
   x = 3,903,863,062.86/91,591.97
6. Step 6: Final answer
   x = 42,622.33