Finding the Fourth Proportional to 85,905.55, 128,827.45 and 29,730.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,905.55 : 128,827.45 = 29,730.42 : x
2. Step 2: Convert to fraction form
   85,905.55/128,827.45 = 29,730.42/x
3. Step 3: Cross multiply
   85,905.55x = 128,827.45 × 29,730.42
4. Step 4: Simplify right side
   85,905.55x = 3,830,094,196.03
5. Step 5: Solve for x
   x = 3,830,094,196.03/85,905.55
6. Step 6: Final answer
   x = 44,584.94