Finding the Fourth Proportional to 92,692.51, 139,080.30 and 42,745.83

Step by Step Solution

1. Step 1: Write the proportion equation
   92,692.51 : 139,080.30 = 42,745.83 : x
2. Step 2: Convert to fraction form
   92,692.51/139,080.30 = 42,745.83/x
3. Step 3: Cross multiply
   92,692.51x = 139,080.30 × 42,745.83
4. Step 4: Simplify right side
   92,692.51x = 5,945,102,860.15
5. Step 5: Solve for x
   x = 5,945,102,860.15/92,692.51
6. Step 6: Final answer
   x = 64,137.90