Finding the Fourth Proportional to 87,683.96, 131,537.59 and 28,499.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,683.96 : 131,537.59 = 28,499.69 : x
2. Step 2: Convert to fraction form
   87,683.96/131,537.59 = 28,499.69/x
3. Step 3: Cross multiply
   87,683.96x = 131,537.59 × 28,499.69
4. Step 4: Simplify right side
   87,683.96x = 3,748,780,795.94
5. Step 5: Solve for x
   x = 3,748,780,795.94/87,683.96
6. Step 6: Final answer
   x = 42,753.32