Finding the Fourth Proportional to 107,443.71, 161,165.37 and 28,557.93

Step by Step Solution

1. Step 1: Write the proportion equation
   107,443.71 : 161,165.37 = 28,557.93 : x
2. Step 2: Convert to fraction form
   107,443.71/161,165.37 = 28,557.93/x
3. Step 3: Cross multiply
   107,443.71x = 161,165.37 × 28,557.93
4. Step 4: Simplify right side
   107,443.71x = 4,602,549,354.88
5. Step 5: Solve for x
   x = 4,602,549,354.88/107,443.71
6. Step 6: Final answer
   x = 42,836.84