Finding the Fourth Proportional to 70,644.96, 105,944.04 and 28,514.16

Step by Step Solution

1. Step 1: Write the proportion equation
   70,644.96 : 105,944.04 = 28,514.16 : x
2. Step 2: Convert to fraction form
   70,644.96/105,944.04 = 28,514.16/x
3. Step 3: Cross multiply
   70,644.96x = 105,944.04 × 28,514.16
4. Step 4: Simplify right side
   70,644.96x = 3,020,905,307.61
5. Step 5: Solve for x
   x = 3,020,905,307.61/70,644.96
6. Step 6: Final answer
   x = 42,761.80