Finding the Fourth Proportional to 445,870.32, 668,411.76 and 341,156.76

Step by Step Solution

1. Step 1: Write the proportion equation
   445,870.32 : 668,411.76 = 341,156.76 : x
2. Step 2: Convert to fraction form
   445,870.32/668,411.76 = 341,156.76/x
3. Step 3: Cross multiply
   445,870.32x = 668,411.76 × 341,156.76
4. Step 4: Simplify right side
   445,870.32x = 228,033,190,387.50
5. Step 5: Solve for x
   x = 228,033,190,387.50/445,870.32
6. Step 6: Final answer
   x = 511,433.89