Finding the Fourth Proportional to 83,443.63, 115,151.71 and 45,203.90

Step by Step Solution

1. Step 1: Write the proportion equation
   83,443.63 : 115,151.71 = 45,203.90 : x
2. Step 2: Convert to fraction form
   83,443.63/115,151.71 = 45,203.90/x
3. Step 3: Cross multiply
   83,443.63x = 115,151.71 × 45,203.90
4. Step 4: Simplify right side
   83,443.63x = 5,205,307,056.97
5. Step 5: Solve for x
   x = 5,205,307,056.97/83,443.63
6. Step 6: Final answer
   x = 62,381.12