Finding the Fourth Proportional to 110,736.65, 152,763.42 and 72,479.35

Step by Step Solution

1. Step 1: Write the proportion equation
   110,736.65 : 152,763.42 = 72,479.35 : x
2. Step 2: Convert to fraction form
   110,736.65/152,763.42 = 72,479.35/x
3. Step 3: Cross multiply
   110,736.65x = 152,763.42 × 72,479.35
4. Step 4: Simplify right side
   110,736.65x = 11,072,193,022.98
5. Step 5: Solve for x
   x = 11,072,193,022.98/110,736.65
6. Step 6: Final answer
   x = 99,986.71