Finding the Fourth Proportional to 76,469.94, 105,525.09 and 42,480.81

Step by Step Solution

1. Step 1: Write the proportion equation
   76,469.94 : 105,525.09 = 42,480.81 : x
2. Step 2: Convert to fraction form
   76,469.94/105,525.09 = 42,480.81/x
3. Step 3: Cross multiply
   76,469.94x = 105,525.09 × 42,480.81
4. Step 4: Simplify right side
   76,469.94x = 4,482,791,298.52
5. Step 5: Solve for x
   x = 4,482,791,298.52/76,469.94
6. Step 6: Final answer
   x = 58,621.61