Finding the Fourth Proportional to 76,103.61, 105,023.11 and 42,113.53

Step by Step Solution

1. Step 1: Write the proportion equation
   76,103.61 : 105,023.11 = 42,113.53 : x
2. Step 2: Convert to fraction form
   76,103.61/105,023.11 = 42,113.53/x
3. Step 3: Cross multiply
   76,103.61x = 105,023.11 × 42,113.53
4. Step 4: Simplify right side
   76,103.61x = 4,422,893,525.84
5. Step 5: Solve for x
   x = 4,422,893,525.84/76,103.61
6. Step 6: Final answer
   x = 58,116.74