Finding the Fourth Proportional to 76,397.82, 105,427.36 and 42,404.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,397.82 : 105,427.36 = 42,404.34 : x
2. Step 2: Convert to fraction form
   76,397.82/105,427.36 = 42,404.34/x
3. Step 3: Cross multiply
   76,397.82x = 105,427.36 × 42,404.34
4. Step 4: Simplify right side
   76,397.82x = 4,470,577,618.74
5. Step 5: Solve for x
   x = 4,470,577,618.74/76,397.82
6. Step 6: Final answer
   x = 58,517.08