Finding the Fourth Proportional to 91,158, 136,696.72 and 41,236.08

Step by Step Solution

1. Step 1: Write the proportion equation
   91,158 : 136,696.72 = 41,236.08 : x
2. Step 2: Convert to fraction form
   91,158/136,696.72 = 41,236.08/x
3. Step 3: Cross multiply
   91,158x = 136,696.72 × 41,236.08
4. Step 4: Simplify right side
   91,158x = 5,636,836,881.66
5. Step 5: Solve for x
   x = 5,636,836,881.66/91,158
6. Step 6: Final answer
   x = 61,835.90