Finding the Fourth Proportional to 89,720.68, 134,601.86 and 30,556.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,720.68 : 134,601.86 = 30,556.86 : x
2. Step 2: Convert to fraction form
   89,720.68/134,601.86 = 30,556.86/x
3. Step 3: Cross multiply
   89,720.68x = 134,601.86 × 30,556.86
4. Step 4: Simplify right side
   89,720.68x = 4,113,010,191.76
5. Step 5: Solve for x
   x = 4,113,010,191.76/89,720.68
6. Step 6: Final answer
   x = 45,842.39