Finding the Fourth Proportional to 87,106.78, 130,685.01 and 42,746.86

Step by Step Solution

1. Step 1: Write the proportion equation
   87,106.78 : 130,685.01 = 42,746.86 : x
2. Step 2: Convert to fraction form
   87,106.78/130,685.01 = 42,746.86/x
3. Step 3: Cross multiply
   87,106.78x = 130,685.01 × 42,746.86
4. Step 4: Simplify right side
   87,106.78x = 5,586,373,826.57
5. Step 5: Solve for x
   x = 5,586,373,826.57/87,106.78
6. Step 6: Final answer
   x = 64,132.48