Finding the Fourth Proportional to 297,436.79, 446,155.16 and 87,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   297,436.79 : 446,155.16 = 87,074.72 : x
2. Step 2: Convert to fraction form
   297,436.79/446,155.16 = 87,074.72/x
3. Step 3: Cross multiply
   297,436.79x = 446,155.16 × 87,074.72
4. Step 4: Simplify right side
   297,436.79x = 38,848,835,633.56
5. Step 5: Solve for x
   x = 38,848,835,633.56/297,436.79
6. Step 6: Final answer
   x = 130,612.07