Finding the Fourth Proportional to 89,720.40, 134,575.72 and 27,386

Step by Step Solution

1. Step 1: Write the proportion equation
   89,720.40 : 134,575.72 = 27,386 : x
2. Step 2: Convert to fraction form
   89,720.40/134,575.72 = 27,386/x
3. Step 3: Cross multiply
   89,720.40x = 134,575.72 × 27,386
4. Step 4: Simplify right side
   89,720.40x = 3,685,490,667.92
5. Step 5: Solve for x
   x = 3,685,490,667.92/89,720.40
6. Step 6: Final answer
   x = 41,077.51