Finding the Fourth Proportional to 145,164.31, 217,777.58 and 50,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,164.31 : 217,777.58 = 50,397.50 : x
2. Step 2: Convert to fraction form
   145,164.31/217,777.58 = 50,397.50/x
3. Step 3: Cross multiply
   145,164.31x = 217,777.58 × 50,397.50
4. Step 4: Simplify right side
   145,164.31x = 10,975,445,588.05
5. Step 5: Solve for x
   x = 10,975,445,588.05/145,164.31
6. Step 6: Final answer
   x = 75,607.05