Finding the Fourth Proportional to 151,580.61, 209,178.48 and 83,603.88

Step by Step Solution

1. Step 1: Write the proportion equation
   151,580.61 : 209,178.48 = 83,603.88 : x
2. Step 2: Convert to fraction form
   151,580.61/209,178.48 = 83,603.88/x
3. Step 3: Cross multiply
   151,580.61x = 209,178.48 × 83,603.88
4. Step 4: Simplify right side
   151,580.61x = 17,488,132,540.50
5. Step 5: Solve for x
   x = 17,488,132,540.50/151,580.61
6. Step 6: Final answer
   x = 115,371.83