Finding the Fourth Proportional to 145,978.53, 201,451.82 and 85,584.93

Step by Step Solution

1. Step 1: Write the proportion equation
   145,978.53 : 201,451.82 = 85,584.93 : x
2. Step 2: Convert to fraction form
   145,978.53/201,451.82 = 85,584.93/x
3. Step 3: Cross multiply
   145,978.53x = 201,451.82 × 85,584.93
4. Step 4: Simplify right side
   145,978.53x = 17,241,239,913.07
5. Step 5: Solve for x
   x = 17,241,239,913.07/145,978.53
6. Step 6: Final answer
   x = 118,108.05