Finding the Fourth Proportional to 105,165.69, 157,748.53 and 55,906.17

Step by Step Solution

1. Step 1: Write the proportion equation
   105,165.69 : 157,748.53 = 55,906.17 : x
2. Step 2: Convert to fraction form
   105,165.69/157,748.53 = 55,906.17/x
3. Step 3: Cross multiply
   105,165.69x = 157,748.53 × 55,906.17
4. Step 4: Simplify right side
   105,165.69x = 8,819,116,135.43
5. Step 5: Solve for x
   x = 8,819,116,135.43/105,165.69
6. Step 6: Final answer
   x = 83,859.25