Finding the Fourth Proportional to 67,259.74, 92,736.21 and 42,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,259.74 : 92,736.21 = 42,065.50 : x
2. Step 2: Convert to fraction form
   67,259.74/92,736.21 = 42,065.50/x
3. Step 3: Cross multiply
   67,259.74x = 92,736.21 × 42,065.50
4. Step 4: Simplify right side
   67,259.74x = 3,900,995,041.76
5. Step 5: Solve for x
   x = 3,900,995,041.76/67,259.74
6. Step 6: Final answer
   x = 57,998.96