Finding the Fourth Proportional to 88,091.89, 121,566.89 and 47,805.65

Step by Step Solution

1. Step 1: Write the proportion equation
   88,091.89 : 121,566.89 = 47,805.65 : x
2. Step 2: Convert to fraction form
   88,091.89/121,566.89 = 47,805.65/x
3. Step 3: Cross multiply
   88,091.89x = 121,566.89 × 47,805.65
4. Step 4: Simplify right side
   88,091.89x = 5,811,584,379.33
5. Step 5: Solve for x
   x = 5,811,584,379.33/88,091.89
6. Step 6: Final answer
   x = 65,971.84