Finding the Fourth Proportional to 76,072.32, 104,971.72 and 42,075.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,072.32 : 104,971.72 = 42,075.42 : x
2. Step 2: Convert to fraction form
   76,072.32/104,971.72 = 42,075.42/x
3. Step 3: Cross multiply
   76,072.32x = 104,971.72 × 42,075.42
4. Step 4: Simplify right side
   76,072.32x = 4,416,729,207.12
5. Step 5: Solve for x
   x = 4,416,729,207.12/76,072.32
6. Step 6: Final answer
   x = 58,059.61