Finding the Fourth Proportional to 147,172.52, 203,102.86 and 83,513

Step by Step Solution

1. Step 1: Write the proportion equation
   147,172.52 : 203,102.86 = 83,513 : x
2. Step 2: Convert to fraction form
   147,172.52/203,102.86 = 83,513/x
3. Step 3: Cross multiply
   147,172.52x = 203,102.86 × 83,513
4. Step 4: Simplify right side
   147,172.52x = 16,961,729,147.18
5. Step 5: Solve for x
   x = 16,961,729,147.18/147,172.52
6. Step 6: Final answer
   x = 115,250.65