Finding the Fourth Proportional to 93,011.79, 139,514.56 and 40,421.27

Step by Step Solution

1. Step 1: Write the proportion equation
   93,011.79 : 139,514.56 = 40,421.27 : x
2. Step 2: Convert to fraction form
   93,011.79/139,514.56 = 40,421.27/x
3. Step 3: Cross multiply
   93,011.79x = 139,514.56 × 40,421.27
4. Step 4: Simplify right side
   93,011.79x = 5,639,355,574.82
5. Step 5: Solve for x
   x = 5,639,355,574.82/93,011.79
6. Step 6: Final answer
   x = 60,630.55