Finding the Fourth Proportional to 76,676.06, 105,811.83 and 42,684.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,676.06 : 105,811.83 = 42,684.48 : x
2. Step 2: Convert to fraction form
   76,676.06/105,811.83 = 42,684.48/x
3. Step 3: Cross multiply
   76,676.06x = 105,811.83 × 42,684.48
4. Step 4: Simplify right side
   76,676.06x = 4,516,522,941.40
5. Step 5: Solve for x
   x = 4,516,522,941.40/76,676.06
6. Step 6: Final answer
   x = 58,903.95