Finding the Fourth Proportional to 357,942.05, 536,900.72 and 91,705.18

Step by Step Solution

1. Step 1: Write the proportion equation
   357,942.05 : 536,900.72 = 91,705.18 : x
2. Step 2: Convert to fraction form
   357,942.05/536,900.72 = 91,705.18/x
3. Step 3: Cross multiply
   357,942.05x = 536,900.72 × 91,705.18
4. Step 4: Simplify right side
   357,942.05x = 49,236,574,485.23
5. Step 5: Solve for x
   x = 49,236,574,485.23/357,942.05
6. Step 6: Final answer
   x = 137,554.60