Finding the Fourth Proportional to 91,830, 137,768.12 and 26,166

Step by Step Solution

1. Step 1: Write the proportion equation
   91,830 : 137,768.12 = 26,166 : x
2. Step 2: Convert to fraction form
   91,830/137,768.12 = 26,166/x
3. Step 3: Cross multiply
   91,830x = 137,768.12 × 26,166
4. Step 4: Simplify right side
   91,830x = 3,604,840,627.92
5. Step 5: Solve for x
   x = 3,604,840,627.92/91,830
6. Step 6: Final answer
   x = 39,255.59