Finding the Fourth Proportional to 78,642.76, 108,528.24 and 42,832.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,642.76 : 108,528.24 = 42,832.76 : x
2. Step 2: Convert to fraction form
   78,642.76/108,528.24 = 42,832.76/x
3. Step 3: Cross multiply
   78,642.76x = 108,528.24 × 42,832.76
4. Step 4: Simplify right side
   78,642.76x = 4,648,564,057.14
5. Step 5: Solve for x
   x = 4,648,564,057.14/78,642.76
6. Step 6: Final answer
   x = 59,109.88