Finding the Fourth Proportional to 101,431.92, 151,404.72 and 89,461.38

Step by Step Solution

1. Step 1: Write the proportion equation
   101,431.92 : 151,404.72 = 89,461.38 : x
2. Step 2: Convert to fraction form
   101,431.92/151,404.72 = 89,461.38/x
3. Step 3: Cross multiply
   101,431.92x = 151,404.72 × 89,461.38
4. Step 4: Simplify right side
   101,431.92x = 13,544,875,189.71
5. Step 5: Solve for x
   x = 13,544,875,189.71/101,431.92
6. Step 6: Final answer
   x = 133,536.61