Finding the Fourth Proportional to 89,181, 122,962.17 and 77,059.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89,181 : 122,962.17 = 77,059.57 : x
2. Step 2: Convert to fraction form
   89,181/122,962.17 = 77,059.57/x
3. Step 3: Cross multiply
   89,181x = 122,962.17 × 77,059.57
4. Step 4: Simplify right side
   89,181x = 9,475,411,946.47
5. Step 5: Solve for x
   x = 9,475,411,946.47/89,181
6. Step 6: Final answer
   x = 106,249.22