Finding the Fourth Proportional to 70,595.40, 105,913.83 and 28,453.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,595.40 : 105,913.83 = 28,453.84 : x
2. Step 2: Convert to fraction form
   70,595.40/105,913.83 = 28,453.84/x
3. Step 3: Cross multiply
   70,595.40x = 105,913.83 × 28,453.84
4. Step 4: Simplify right side
   70,595.40x = 3,013,655,172.61
5. Step 5: Solve for x
   x = 3,013,655,172.61/70,595.40
6. Step 6: Final answer
   x = 42,689.12