Finding the Fourth Proportional to 105,773.67, 158,707.89 and 57,758.07

Step by Step Solution

1. Step 1: Write the proportion equation
   105,773.67 : 158,707.89 = 57,758.07 : x
2. Step 2: Convert to fraction form
   105,773.67/158,707.89 = 57,758.07/x
3. Step 3: Cross multiply
   105,773.67x = 158,707.89 × 57,758.07
4. Step 4: Simplify right side
   105,773.67x = 9,166,661,420.17
5. Step 5: Solve for x
   x = 9,166,661,420.17/105,773.67
6. Step 6: Final answer
   x = 86,662.98