Finding the Fourth Proportional to 151,730.76, 209,389.20 and 83,747.86

Step by Step Solution

1. Step 1: Write the proportion equation
   151,730.76 : 209,389.20 = 83,747.86 : x
2. Step 2: Convert to fraction form
   151,730.76/209,389.20 = 83,747.86/x
3. Step 3: Cross multiply
   151,730.76x = 209,389.20 × 83,747.86
4. Step 4: Simplify right side
   151,730.76x = 17,535,897,407.11
5. Step 5: Solve for x
   x = 17,535,897,407.11/151,730.76
6. Step 6: Final answer
   x = 115,572.46