Finding the Fourth Proportional to 111,112.68, 153,311.76 and 65,804.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,112.68 : 153,311.76 = 65,804.88 : x
2. Step 2: Convert to fraction form
   111,112.68/153,311.76 = 65,804.88/x
3. Step 3: Cross multiply
   111,112.68x = 153,311.76 × 65,804.88
4. Step 4: Simplify right side
   111,112.68x = 10,088,661,969.39
5. Step 5: Solve for x
   x = 10,088,661,969.39/111,112.68
6. Step 6: Final answer
   x = 90,796.68