Finding the Fourth Proportional to 91,729.74, 126,469.86 and 59,407.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,729.74 : 126,469.86 = 59,407.25 : x
2. Step 2: Convert to fraction form
   91,729.74/126,469.86 = 59,407.25/x
3. Step 3: Cross multiply
   91,729.74x = 126,469.86 × 59,407.25
4. Step 4: Simplify right side
   91,729.74x = 7,513,225,661.10
5. Step 5: Solve for x
   x = 7,513,225,661.10/91,729.74
6. Step 6: Final answer
   x = 81,906.10