Finding the Fourth Proportional to 111,756.96, 154,225.71 and 64,009.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,756.96 : 154,225.71 = 64,009.31 : x
2. Step 2: Convert to fraction form
   111,756.96/154,225.71 = 64,009.31/x
3. Step 3: Cross multiply
   111,756.96x = 154,225.71 × 64,009.31
4. Step 4: Simplify right side
   111,756.96x = 9,871,880,510.23
5. Step 5: Solve for x
   x = 9,871,880,510.23/111,756.96
6. Step 6: Final answer
   x = 88,333.47