Finding the Fourth Proportional to 83,412.49, 115,109.30 and 45,172.34

Step by Step Solution

1. Step 1: Write the proportion equation
   83,412.49 : 115,109.30 = 45,172.34 : x
2. Step 2: Convert to fraction form
   83,412.49/115,109.30 = 45,172.34/x
3. Step 3: Cross multiply
   83,412.49x = 115,109.30 × 45,172.34
4. Step 4: Simplify right side
   83,412.49x = 5,199,756,436.76
5. Step 5: Solve for x
   x = 5,199,756,436.76/83,412.49
6. Step 6: Final answer
   x = 62,337.86