Finding the Fourth Proportional to 85,441.98, 128,162.47 and 34,840.81

Step by Step Solution

1. Step 1: Write the proportion equation
   85,441.98 : 128,162.47 = 34,840.81 : x
2. Step 2: Convert to fraction form
   85,441.98/128,162.47 = 34,840.81/x
3. Step 3: Cross multiply
   85,441.98x = 128,162.47 × 34,840.81
4. Step 4: Simplify right side
   85,441.98x = 4,465,283,683.91
5. Step 5: Solve for x
   x = 4,465,283,683.91/85,441.98
6. Step 6: Final answer
   x = 52,261.01