Finding the Fourth Proportional to 89,580.18, 123,579.06 and 53,707.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,580.18 : 123,579.06 = 53,707.98 : x
2. Step 2: Convert to fraction form
   89,580.18/123,579.06 = 53,707.98/x
3. Step 3: Cross multiply
   89,580.18x = 123,579.06 × 53,707.98
4. Step 4: Simplify right side
   89,580.18x = 6,637,181,682.90
5. Step 5: Solve for x
   x = 6,637,181,682.90/89,580.18
6. Step 6: Final answer
   x = 74,092.08