Finding the Fourth Proportional to 89,858.43, 134,764.55 and 26,663.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,858.43 : 134,764.55 = 26,663.60 : x
2. Step 2: Convert to fraction form
   89,858.43/134,764.55 = 26,663.60/x
3. Step 3: Cross multiply
   89,858.43x = 134,764.55 × 26,663.60
4. Step 4: Simplify right side
   89,858.43x = 3,593,308,055.38
5. Step 5: Solve for x
   x = 3,593,308,055.38/89,858.43
6. Step 6: Final answer
   x = 39,988.55