Finding the Fourth Proportional to 103,423.91, 142,740.43 and 63,160.83

Step by Step Solution

1. Step 1: Write the proportion equation
   103,423.91 : 142,740.43 = 63,160.83 : x
2. Step 2: Convert to fraction form
   103,423.91/142,740.43 = 63,160.83/x
3. Step 3: Cross multiply
   103,423.91x = 142,740.43 × 63,160.83
4. Step 4: Simplify right side
   103,423.91x = 9,015,603,875.45
5. Step 5: Solve for x
   x = 9,015,603,875.45/103,423.91
6. Step 6: Final answer
   x = 87,171.37