Finding the Fourth Proportional to 110,429.72, 152,354.20 and 72,211.64

Step by Step Solution

1. Step 1: Write the proportion equation
   110,429.72 : 152,354.20 = 72,211.64 : x
2. Step 2: Convert to fraction form
   110,429.72/152,354.20 = 72,211.64/x
3. Step 3: Cross multiply
   110,429.72x = 152,354.20 × 72,211.64
4. Step 4: Simplify right side
   110,429.72x = 11,001,746,642.89
5. Step 5: Solve for x
   x = 11,001,746,642.89/110,429.72
6. Step 6: Final answer
   x = 99,626.68