Finding the Fourth Proportional to 85,911.15, 128,835.82 and 29,736

Step by Step Solution

1. Step 1: Write the proportion equation
   85,911.15 : 128,835.82 = 29,736 : x
2. Step 2: Convert to fraction form
   85,911.15/128,835.82 = 29,736/x
3. Step 3: Cross multiply
   85,911.15x = 128,835.82 × 29,736
4. Step 4: Simplify right side
   85,911.15x = 3,831,061,943.52
5. Step 5: Solve for x
   x = 3,831,061,943.52/85,911.15
6. Step 6: Final answer
   x = 44,593.30