Finding the Fourth Proportional to 89,878.06, 134,817.12 and 30,714.28

Step by Step Solution

1. Step 1: Write the proportion equation
   89,878.06 : 134,817.12 = 30,714.28 : x
2. Step 2: Convert to fraction form
   89,878.06/134,817.12 = 30,714.28/x
3. Step 3: Cross multiply
   89,878.06x = 134,817.12 × 30,714.28
4. Step 4: Simplify right side
   89,878.06x = 4,140,810,772.47
5. Step 5: Solve for x
   x = 4,140,810,772.47/89,878.06
6. Step 6: Final answer
   x = 46,071.43