Finding the Fourth Proportional to 92,861.55, 139,328.78 and 36,692.10

Step by Step Solution

1. Step 1: Write the proportion equation
   92,861.55 : 139,328.78 = 36,692.10 : x
2. Step 2: Convert to fraction form
   92,861.55/139,328.78 = 36,692.10/x
3. Step 3: Cross multiply
   92,861.55x = 139,328.78 × 36,692.10
4. Step 4: Simplify right side
   92,861.55x = 5,112,265,345.18
5. Step 5: Solve for x
   x = 5,112,265,345.18/92,861.55
6. Step 6: Final answer
   x = 55,052.55