Finding the Fourth Proportional to 91,642.80, 137,386.17 and 41,705.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,642.80 : 137,386.17 = 41,705.40 : x
2. Step 2: Convert to fraction form
   91,642.80/137,386.17 = 41,705.40/x
3. Step 3: Cross multiply
   91,642.80x = 137,386.17 × 41,705.40
4. Step 4: Simplify right side
   91,642.80x = 5,729,745,174.32
5. Step 5: Solve for x
   x = 5,729,745,174.32/91,642.80
6. Step 6: Final answer
   x = 62,522.59