Finding the Fourth Proportional to 110,921, 153,017.46 and 72,663.86

Step by Step Solution

1. Step 1: Write the proportion equation
   110,921 : 153,017.46 = 72,663.86 : x
2. Step 2: Convert to fraction form
   110,921/153,017.46 = 72,663.86/x
3. Step 3: Cross multiply
   110,921x = 153,017.46 × 72,663.86
4. Step 4: Simplify right side
   110,921x = 11,118,839,291.00
5. Step 5: Solve for x
   x = 11,118,839,291.00/110,921
6. Step 6: Final answer
   x = 100,241.07