Finding the Fourth Proportional to 91,235.94, 136,867 and 28,061.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91,235.94 : 136,867 = 28,061.34 : x
2. Step 2: Convert to fraction form
   91,235.94/136,867 = 28,061.34/x
3. Step 3: Cross multiply
   91,235.94x = 136,867 × 28,061.34
4. Step 4: Simplify right side
   91,235.94x = 3,840,671,421.78
5. Step 5: Solve for x
   x = 3,840,671,421.78/91,235.94
6. Step 6: Final answer
   x = 42,096.04