Finding the Fourth Proportional to 89,322.79, 123,260.81 and 53,025.74

Step by Step Solution

1. Step 1: Write the proportion equation
   89,322.79 : 123,260.81 = 53,025.74 : x
2. Step 2: Convert to fraction form
   89,322.79/123,260.81 = 53,025.74/x
3. Step 3: Cross multiply
   89,322.79x = 123,260.81 × 53,025.74
4. Step 4: Simplify right side
   89,322.79x = 6,535,995,663.25
5. Step 5: Solve for x
   x = 6,535,995,663.25/89,322.79
6. Step 6: Final answer
   x = 73,172.77