Finding the Fourth Proportional to 103,633.50, 143,019.46 and 61,191.12

Step by Step Solution

1. Step 1: Write the proportion equation
   103,633.50 : 143,019.46 = 61,191.12 : x
2. Step 2: Convert to fraction form
   103,633.50/143,019.46 = 61,191.12/x
3. Step 3: Cross multiply
   103,633.50x = 143,019.46 × 61,191.12
4. Step 4: Simplify right side
   103,633.50x = 8,751,520,939.20
5. Step 5: Solve for x
   x = 8,751,520,939.20/103,633.50
6. Step 6: Final answer
   x = 84,446.83