Finding the Fourth Proportional to 151,638.72, 227,153.46 and 75,507.90

Step by Step Solution

1. Step 1: Write the proportion equation
   151,638.72 : 227,153.46 = 75,507.90 : x
2. Step 2: Convert to fraction form
   151,638.72/227,153.46 = 75,507.90/x
3. Step 3: Cross multiply
   151,638.72x = 227,153.46 × 75,507.90
4. Step 4: Simplify right side
   151,638.72x = 17,151,880,742.33
5. Step 5: Solve for x
   x = 17,151,880,742.33/151,638.72
6. Step 6: Final answer
   x = 113,110.17