Finding the Fourth Proportional to 107,382.47, 161,061.20 and 28,502.83

Step by Step Solution

1. Step 1: Write the proportion equation
   107,382.47 : 161,061.20 = 28,502.83 : x
2. Step 2: Convert to fraction form
   107,382.47/161,061.20 = 28,502.83/x
3. Step 3: Cross multiply
   107,382.47x = 161,061.20 × 28,502.83
4. Step 4: Simplify right side
   107,382.47x = 4,590,699,055.38
5. Step 5: Solve for x
   x = 4,590,699,055.38/107,382.47
6. Step 6: Final answer
   x = 42,750.92