Finding the Fourth Proportional to 89,790.72, 134,670.84 and 26,609.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,790.72 : 134,670.84 = 26,609.52 : x
2. Step 2: Convert to fraction form
   89,790.72/134,670.84 = 26,609.52/x
3. Step 3: Cross multiply
   89,790.72x = 134,670.84 × 26,609.52
4. Step 4: Simplify right side
   89,790.72x = 3,583,526,410.40
5. Step 5: Solve for x
   x = 3,583,526,410.40/89,790.72
6. Step 6: Final answer
   x = 39,909.76