Finding the Fourth Proportional to 191,766.56, 287,663.16 and 58,636.58

Step by Step Solution

1. Step 1: Write the proportion equation
   191,766.56 : 287,663.16 = 58,636.58 : x
2. Step 2: Convert to fraction form
   191,766.56/287,663.16 = 58,636.58/x
3. Step 3: Cross multiply
   191,766.56x = 287,663.16 × 58,636.58
4. Step 4: Simplify right side
   191,766.56x = 16,867,583,894.39
5. Step 5: Solve for x
   x = 16,867,583,894.39/191,766.56
6. Step 6: Final answer
   x = 87,958.94