Finding the Fourth Proportional to 76,238.76, 105,209.49 and 42,704.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,238.76 : 105,209.49 = 42,704.76 : x
2. Step 2: Convert to fraction form
   76,238.76/105,209.49 = 42,704.76/x
3. Step 3: Cross multiply
   76,238.76x = 105,209.49 × 42,704.76
4. Step 4: Simplify right side
   76,238.76x = 4,492,946,020.17
5. Step 5: Solve for x
   x = 4,492,946,020.17/76,238.76
6. Step 6: Final answer
   x = 58,932.57