Finding the Fourth Proportional to 76,101.32, 105,019.94 and 42,111.23

Step by Step Solution

1. Step 1: Write the proportion equation
   76,101.32 : 105,019.94 = 42,111.23 : x
2. Step 2: Convert to fraction form
   76,101.32/105,019.94 = 42,111.23/x
3. Step 3: Cross multiply
   76,101.32x = 105,019.94 × 42,111.23
4. Step 4: Simplify right side
   76,101.32x = 4,422,518,899.92
5. Step 5: Solve for x
   x = 4,422,518,899.92/76,101.32
6. Step 6: Final answer
   x = 58,113.57