Finding the Fourth Proportional to 112,404.51, 168,602.79 and 28,165.38

Step by Step Solution

1. Step 1: Write the proportion equation
   112,404.51 : 168,602.79 = 28,165.38 : x
2. Step 2: Convert to fraction form
   112,404.51/168,602.79 = 28,165.38/x
3. Step 3: Cross multiply
   112,404.51x = 168,602.79 × 28,165.38
4. Step 4: Simplify right side
   112,404.51x = 4,748,761,649.41
5. Step 5: Solve for x
   x = 4,748,761,649.41/112,404.51
6. Step 6: Final answer
   x = 42,247.07