Finding the Fourth Proportional to 91,096.20, 136,611.90 and 41,200.20

Step by Step Solution

1. Step 1: Write the proportion equation
   91,096.20 : 136,611.90 = 41,200.20 : x
2. Step 2: Convert to fraction form
   91,096.20/136,611.90 = 41,200.20/x
3. Step 3: Cross multiply
   91,096.20x = 136,611.90 × 41,200.20
4. Step 4: Simplify right side
   91,096.20x = 5,628,437,602.38
5. Step 5: Solve for x
   x = 5,628,437,602.38/91,096.20
6. Step 6: Final answer
   x = 61,785.65