Finding the Fourth Proportional to 63,155.35, 87,108.78 and 42,976.63

Step by Step Solution

1. Step 1: Write the proportion equation
   63,155.35 : 87,108.78 = 42,976.63 : x
2. Step 2: Convert to fraction form
   63,155.35/87,108.78 = 42,976.63/x
3. Step 3: Cross multiply
   63,155.35x = 87,108.78 × 42,976.63
4. Step 4: Simplify right side
   63,155.35x = 3,743,641,807.81
5. Step 5: Solve for x
   x = 3,743,641,807.81/63,155.35
6. Step 6: Final answer
   x = 59,276.72