Finding the Fourth Proportional to 58,692.79, 80,931.85 and 43,613.42

Step by Step Solution

1. Step 1: Write the proportion equation
   58,692.79 : 80,931.85 = 43,613.42 : x
2. Step 2: Convert to fraction form
   58,692.79/80,931.85 = 43,613.42/x
3. Step 3: Cross multiply
   58,692.79x = 80,931.85 × 43,613.42
4. Step 4: Simplify right side
   58,692.79x = 3,529,714,765.43
5. Step 5: Solve for x
   x = 3,529,714,765.43/58,692.79
6. Step 6: Final answer
   x = 60,138.81