Finding the Fourth Proportional to 88,091.60, 121,566.72 and 47,805.35

Step by Step Solution

1. Step 1: Write the proportion equation
   88,091.60 : 121,566.72 = 47,805.35 : x
2. Step 2: Convert to fraction form
   88,091.60/121,566.72 = 47,805.35/x
3. Step 3: Cross multiply
   88,091.60x = 121,566.72 × 47,805.35
4. Step 4: Simplify right side
   88,091.60x = 5,811,538,990.12
5. Step 5: Solve for x
   x = 5,811,538,990.12/88,091.60
6. Step 6: Final answer
   x = 65,971.55