Finding the Fourth Proportional to 89,871.12, 134,814.24 and 30,710.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,871.12 : 134,814.24 = 30,710.88 : x
2. Step 2: Convert to fraction form
   89,871.12/134,814.24 = 30,710.88/x
3. Step 3: Cross multiply
   89,871.12x = 134,814.24 × 30,710.88
4. Step 4: Simplify right side
   89,871.12x = 4,140,263,946.93
5. Step 5: Solve for x
   x = 4,140,263,946.93/89,871.12
6. Step 6: Final answer
   x = 46,068.90