Finding the Fourth Proportional to 76,373.28, 105,395.78 and 42,384.06

Step by Step Solution

1. Step 1: Write the proportion equation
   76,373.28 : 105,395.78 = 42,384.06 : x
2. Step 2: Convert to fraction form
   76,373.28/105,395.78 = 42,384.06/x
3. Step 3: Cross multiply
   76,373.28x = 105,395.78 × 42,384.06
4. Step 4: Simplify right side
   76,373.28x = 4,467,101,169.23
5. Step 5: Solve for x
   x = 4,467,101,169.23/76,373.28
6. Step 6: Final answer
   x = 58,490.37