Finding the Fourth Proportional to 58,627.72, 80,800.50 and 42,686.92

Step by Step Solution

1. Step 1: Write the proportion equation
   58,627.72 : 80,800.50 = 42,686.92 : x
2. Step 2: Convert to fraction form
   58,627.72/80,800.50 = 42,686.92/x
3. Step 3: Cross multiply
   58,627.72x = 80,800.50 × 42,686.92
4. Step 4: Simplify right side
   58,627.72x = 3,449,124,479.46
5. Step 5: Solve for x
   x = 3,449,124,479.46/58,627.72
6. Step 6: Final answer
   x = 58,830.95