Finding the Fourth Proportional to 76,047.36, 104,942.72 and 42,513.28

Step by Step Solution

1. Step 1: Write the proportion equation
   76,047.36 : 104,942.72 = 42,513.28 : x
2. Step 2: Convert to fraction form
   76,047.36/104,942.72 = 42,513.28/x
3. Step 3: Cross multiply
   76,047.36x = 104,942.72 × 42,513.28
4. Step 4: Simplify right side
   76,047.36x = 4,461,459,239.32
5. Step 5: Solve for x
   x = 4,461,459,239.32/76,047.36
6. Step 6: Final answer
   x = 58,666.85