Finding the Fourth Proportional to 109,123.53, 163,619.42 and 42,550.89

Step by Step Solution

1. Step 1: Write the proportion equation
   109,123.53 : 163,619.42 = 42,550.89 : x
2. Step 2: Convert to fraction form
   109,123.53/163,619.42 = 42,550.89/x
3. Step 3: Cross multiply
   109,123.53x = 163,619.42 × 42,550.89
4. Step 4: Simplify right side
   109,123.53x = 6,962,151,729.53
5. Step 5: Solve for x
   x = 6,962,151,729.53/109,123.53
6. Step 6: Final answer
   x = 63,800.65