Finding the Fourth Proportional to 67,083.14, 92,503.81 and 56,320.60

Step by Step Solution

1. Step 1: Write the proportion equation
   67,083.14 : 92,503.81 = 56,320.60 : x
2. Step 2: Convert to fraction form
   67,083.14/92,503.81 = 56,320.60/x
3. Step 3: Cross multiply
   67,083.14x = 92,503.81 × 56,320.60
4. Step 4: Simplify right side
   67,083.14x = 5,209,870,094.07
5. Step 5: Solve for x
   x = 5,209,870,094.07/67,083.14
6. Step 6: Final answer
   x = 77,662.88