Finding the Fourth Proportional to 152,620.10, 210,629.06 and 88,956.54

Step by Step Solution

1. Step 1: Write the proportion equation
   152,620.10 : 210,629.06 = 88,956.54 : x
2. Step 2: Convert to fraction form
   152,620.10/210,629.06 = 88,956.54/x
3. Step 3: Cross multiply
   152,620.10x = 210,629.06 × 88,956.54
4. Step 4: Simplify right side
   152,620.10x = 18,736,832,401.05
5. Step 5: Solve for x
   x = 18,736,832,401.05/152,620.10
6. Step 6: Final answer
   x = 122,767.79