Finding the Fourth Proportional to 91,128.85, 136,679.39 and 34,995.39

Step by Step Solution

1. Step 1: Write the proportion equation
   91,128.85 : 136,679.39 = 34,995.39 : x
2. Step 2: Convert to fraction form
   91,128.85/136,679.39 = 34,995.39/x
3. Step 3: Cross multiply
   91,128.85x = 136,679.39 × 34,995.39
4. Step 4: Simplify right side
   91,128.85x = 4,783,148,558.01
5. Step 5: Solve for x
   x = 4,783,148,558.01/91,128.85
6. Step 6: Final answer
   x = 52,487.75