Finding the Fourth Proportional to 151,583.60, 209,186.52 and 83,603

Step by Step Solution

1. Step 1: Write the proportion equation
   151,583.60 : 209,186.52 = 83,603 : x
2. Step 2: Convert to fraction form
   151,583.60/209,186.52 = 83,603/x
3. Step 3: Cross multiply
   151,583.60x = 209,186.52 × 83,603
4. Step 4: Simplify right side
   151,583.60x = 17,488,620,631.56
5. Step 5: Solve for x
   x = 17,488,620,631.56/151,583.60
6. Step 6: Final answer
   x = 115,372.78