Finding the Fourth Proportional to 35,507.72, 53,166.18 and 28,456.04

Step by Step Solution

1. Step 1: Write the proportion equation
   35,507.72 : 53,166.18 = 28,456.04 : x
2. Step 2: Convert to fraction form
   35,507.72/53,166.18 = 28,456.04/x
3. Step 3: Cross multiply
   35,507.72x = 53,166.18 × 28,456.04
4. Step 4: Simplify right side
   35,507.72x = 1,512,898,944.73
5. Step 5: Solve for x
   x = 1,512,898,944.73/35,507.72
6. Step 6: Final answer
   x = 42,607.61