Finding the Fourth Proportional to 308,591.47, 462,434.34 and 173,917.72

Step by Step Solution

1. Step 1: Write the proportion equation
   308,591.47 : 462,434.34 = 173,917.72 : x
2. Step 2: Convert to fraction form
   308,591.47/462,434.34 = 173,917.72/x
3. Step 3: Cross multiply
   308,591.47x = 462,434.34 × 173,917.72
4. Step 4: Simplify right side
   308,591.47x = 80,425,526,062.50
5. Step 5: Solve for x
   x = 80,425,526,062.50/308,591.47
6. Step 6: Final answer
   x = 260,621.35