Finding the Fourth Proportional to 191,848.32, 287,723.39 and 56,880.83

Step by Step Solution

1. Step 1: Write the proportion equation
   191,848.32 : 287,723.39 = 56,880.83 : x
2. Step 2: Convert to fraction form
   191,848.32/287,723.39 = 56,880.83/x
3. Step 3: Cross multiply
   191,848.32x = 287,723.39 × 56,880.83
4. Step 4: Simplify right side
   191,848.32x = 16,365,945,016.16
5. Step 5: Solve for x
   x = 16,365,945,016.16/191,848.32
6. Step 6: Final answer
   x = 85,306.69