Finding the Fourth Proportional to 87,100.92, 130,673.25 and 42,748.56

Step by Step Solution

1. Step 1: Write the proportion equation
   87,100.92 : 130,673.25 = 42,748.56 : x
2. Step 2: Convert to fraction form
   87,100.92/130,673.25 = 42,748.56/x
3. Step 3: Cross multiply
   87,100.92x = 130,673.25 × 42,748.56
4. Step 4: Simplify right side
   87,100.92x = 5,586,093,268.02
5. Step 5: Solve for x
   x = 5,586,093,268.02/87,100.92
6. Step 6: Final answer
   x = 64,133.57