Finding the Fourth Proportional to 70,322.31, 105,483.15 and 28,769.31

Step by Step Solution

1. Step 1: Write the proportion equation
   70,322.31 : 105,483.15 = 28,769.31 : x
2. Step 2: Convert to fraction form
   70,322.31/105,483.15 = 28,769.31/x
3. Step 3: Cross multiply
   70,322.31x = 105,483.15 × 28,769.31
4. Step 4: Simplify right side
   70,322.31x = 3,034,677,442.13
5. Step 5: Solve for x
   x = 3,034,677,442.13/70,322.31
6. Step 6: Final answer
   x = 43,153.84