Finding the Fourth Proportional to 89,389.02, 123,363.47 and 55,404.19

Step by Step Solution

1. Step 1: Write the proportion equation
   89,389.02 : 123,363.47 = 55,404.19 : x
2. Step 2: Convert to fraction form
   89,389.02/123,363.47 = 55,404.19/x
3. Step 3: Cross multiply
   89,389.02x = 123,363.47 × 55,404.19
4. Step 4: Simplify right side
   89,389.02x = 6,834,853,130.94
5. Step 5: Solve for x
   x = 6,834,853,130.94/89,389.02
6. Step 6: Final answer
   x = 76,461.89