Finding the Fourth Proportional to 83,386.43, 115,072.47 and 45,145.01

Step by Step Solution

1. Step 1: Write the proportion equation
   83,386.43 : 115,072.47 = 45,145.01 : x
2. Step 2: Convert to fraction form
   83,386.43/115,072.47 = 45,145.01/x
3. Step 3: Cross multiply
   83,386.43x = 115,072.47 × 45,145.01
4. Step 4: Simplify right side
   83,386.43x = 5,194,947,233.51
5. Step 5: Solve for x
   x = 5,194,947,233.51/83,386.43
6. Step 6: Final answer
   x = 62,299.67