Finding the Fourth Proportional to 89,985.24, 134,981.55 and 30,861.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89,985.24 : 134,981.55 = 30,861.57 : x
2. Step 2: Convert to fraction form
   89,985.24/134,981.55 = 30,861.57/x
3. Step 3: Cross multiply
   89,985.24x = 134,981.55 × 30,861.57
4. Step 4: Simplify right side
   89,985.24x = 4,165,742,554.03
5. Step 5: Solve for x
   x = 4,165,742,554.03/89,985.24
6. Step 6: Final answer
   x = 46,293.62