Finding the Fourth Proportional to 77,017.50, 106,284.15 and 41,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,017.50 : 106,284.15 = 41,689.50 : x
2. Step 2: Convert to fraction form
   77,017.50/106,284.15 = 41,689.50/x
3. Step 3: Cross multiply
   77,017.50x = 106,284.15 × 41,689.50
4. Step 4: Simplify right side
   77,017.50x = 4,430,933,071.43
5. Step 5: Solve for x
   x = 4,430,933,071.43/77,017.50
6. Step 6: Final answer
   x = 57,531.51