Finding the Fourth Proportional to 89,188, 123,098.64 and 53,386

Step by Step Solution

1. Step 1: Write the proportion equation
   89,188 : 123,098.64 = 53,386 : x
2. Step 2: Convert to fraction form
   89,188/123,098.64 = 53,386/x
3. Step 3: Cross multiply
   89,188x = 123,098.64 × 53,386
4. Step 4: Simplify right side
   89,188x = 6,571,743,995.04
5. Step 5: Solve for x
   x = 6,571,743,995.04/89,188
6. Step 6: Final answer
   x = 73,684.17