Finding the Fourth Proportional to 76,824.72, 106,017.48 and 42,832.80

Step by Step Solution

1. Step 1: Write the proportion equation
   76,824.72 : 106,017.48 = 42,832.80 : x
2. Step 2: Convert to fraction form
   76,824.72/106,017.48 = 42,832.80/x
3. Step 3: Cross multiply
   76,824.72x = 106,017.48 × 42,832.80
4. Step 4: Simplify right side
   76,824.72x = 4,541,025,517.34
5. Step 5: Solve for x
   x = 4,541,025,517.34/76,824.72
6. Step 6: Final answer
   x = 59,108.91