Finding the Fourth Proportional to 93,665.39, 140,597.10 and 91,550.07

Step by Step Solution

1. Step 1: Write the proportion equation
   93,665.39 : 140,597.10 = 91,550.07 : x
2. Step 2: Convert to fraction form
   93,665.39/140,597.10 = 91,550.07/x
3. Step 3: Cross multiply
   93,665.39x = 140,597.10 × 91,550.07
4. Step 4: Simplify right side
   93,665.39x = 12,871,674,346.80
5. Step 5: Solve for x
   x = 12,871,674,346.80/93,665.39
6. Step 6: Final answer
   x = 137,421.89