Finding the Fourth Proportional to 147,582.72, 203,663.16 and 83,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,582.72 : 203,663.16 = 83,920.50 : x
2. Step 2: Convert to fraction form
   147,582.72/203,663.16 = 83,920.50/x
3. Step 3: Cross multiply
   147,582.72x = 203,663.16 × 83,920.50
4. Step 4: Simplify right side
   147,582.72x = 17,091,514,218.78
5. Step 5: Solve for x
   x = 17,091,514,218.78/147,582.72
6. Step 6: Final answer
   x = 115,809.73