Finding the Fourth Proportional to 90,336, 124,663.68 and 55,008

Step by Step Solution

1. Step 1: Write the proportion equation
   90,336 : 124,663.68 = 55,008 : x
2. Step 2: Convert to fraction form
   90,336/124,663.68 = 55,008/x
3. Step 3: Cross multiply
   90,336x = 124,663.68 × 55,008
4. Step 4: Simplify right side
   90,336x = 6,857,499,709.44
5. Step 5: Solve for x
   x = 6,857,499,709.44/90,336
6. Step 6: Final answer
   x = 75,911.04