Finding the Fourth Proportional to 107,383.47, 161,062.69 and 28,503.83

Step by Step Solution

1. Step 1: Write the proportion equation
   107,383.47 : 161,062.69 = 28,503.83 : x
2. Step 2: Convert to fraction form
   107,383.47/161,062.69 = 28,503.83/x
3. Step 3: Cross multiply
   107,383.47x = 161,062.69 × 28,503.83
4. Step 4: Simplify right side
   107,383.47x = 4,590,903,535.10
5. Step 5: Solve for x
   x = 4,590,903,535.10/107,383.47
6. Step 6: Final answer
   x = 42,752.42