Finding the Fourth Proportional to 591,196.72, 886,926.24 and 170,439.76

Step by Step Solution

1. Step 1: Write the proportion equation
   591,196.72 : 886,926.24 = 170,439.76 : x
2. Step 2: Convert to fraction form
   591,196.72/886,926.24 = 170,439.76/x
3. Step 3: Cross multiply
   591,196.72x = 886,926.24 × 170,439.76
4. Step 4: Simplify right side
   591,196.72x = 151,167,495,483.30
5. Step 5: Solve for x
   x = 151,167,495,483.30/591,196.72
6. Step 6: Final answer
   x = 255,697.45