Finding the Fourth Proportional to 342,308.88, 472,349.91 and 189,322.76

Step by Step Solution

1. Step 1: Write the proportion equation
   342,308.88 : 472,349.91 = 189,322.76 : x
2. Step 2: Convert to fraction form
   342,308.88/472,349.91 = 189,322.76/x
3. Step 3: Cross multiply
   342,308.88x = 472,349.91 × 189,322.76
4. Step 4: Simplify right side
   342,308.88x = 89,426,587,611.89
5. Step 5: Solve for x
   x = 89,426,587,611.89/342,308.88
6. Step 6: Final answer
   x = 261,245.31