Finding the Fourth Proportional to 89,100.77, 122,959.02 and 53,290.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,100.77 : 122,959.02 = 53,290.78 : x
2. Step 2: Convert to fraction form
   89,100.77/122,959.02 = 53,290.78/x
3. Step 3: Cross multiply
   89,100.77x = 122,959.02 × 53,290.78
4. Step 4: Simplify right side
   89,100.77x = 6,552,582,083.84
5. Step 5: Solve for x
   x = 6,552,582,083.84/89,100.77
6. Step 6: Final answer
   x = 73,541.25