Finding the Fourth Proportional to 90,051.18, 135,044.37 and 30,870.96

Step by Step Solution

1. Step 1: Write the proportion equation
   90,051.18 : 135,044.37 = 30,870.96 : x
2. Step 2: Convert to fraction form
   90,051.18/135,044.37 = 30,870.96/x
3. Step 3: Cross multiply
   90,051.18x = 135,044.37 × 30,870.96
4. Step 4: Simplify right side
   90,051.18x = 4,168,949,344.50
5. Step 5: Solve for x
   x = 4,168,949,344.50/90,051.18
6. Step 6: Final answer
   x = 46,295.33