Finding the Fourth Proportional to 111,491.86, 153,848.46 and 66,162.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111,491.86 : 153,848.46 = 66,162.01 : x
2. Step 2: Convert to fraction form
   111,491.86/153,848.46 = 66,162.01/x
3. Step 3: Cross multiply
   111,491.86x = 153,848.46 × 66,162.01
4. Step 4: Simplify right side
   111,491.86x = 10,178,923,349.00
5. Step 5: Solve for x
   x = 10,178,923,349.00/111,491.86
6. Step 6: Final answer
   x = 91,297.46