Finding the Fourth Proportional to 88,886.76, 133,379.34 and 53,260.56

Step by Step Solution

1. Step 1: Write the proportion equation
   88,886.76 : 133,379.34 = 53,260.56 : x
2. Step 2: Convert to fraction form
   88,886.76/133,379.34 = 53,260.56/x
3. Step 3: Cross multiply
   88,886.76x = 133,379.34 × 53,260.56
4. Step 4: Simplify right side
   88,886.76x = 7,103,858,340.83
5. Step 5: Solve for x
   x = 7,103,858,340.83/88,886.76
6. Step 6: Final answer
   x = 79,920.32