Finding the Fourth Proportional to 89,262.96, 133,574.52 and 77,296.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,262.96 : 133,574.52 = 77,296.31 : x
2. Step 2: Convert to fraction form
   89,262.96/133,574.52 = 77,296.31/x
3. Step 3: Cross multiply
   89,262.96x = 133,574.52 × 77,296.31
4. Step 4: Simplify right side
   89,262.96x = 10,324,817,506.02
5. Step 5: Solve for x
   x = 10,324,817,506.02/89,262.96
6. Step 6: Final answer
   x = 115,667.43