Finding the Fourth Proportional to 76,238.01, 105,208.46 and 42,704.01

Step by Step Solution

1. Step 1: Write the proportion equation
   76,238.01 : 105,208.46 = 42,704.01 : x
2. Step 2: Convert to fraction form
   76,238.01/105,208.46 = 42,704.01/x
3. Step 3: Cross multiply
   76,238.01x = 105,208.46 × 42,704.01
4. Step 4: Simplify right side
   76,238.01x = 4,492,823,127.92
5. Step 5: Solve for x
   x = 4,492,823,127.92/76,238.01
6. Step 6: Final answer
   x = 58,931.54