Finding the Fourth Proportional to 76,465.20, 105,518.56 and 42,476.04

Step by Step Solution

1. Step 1: Write the proportion equation
   76,465.20 : 105,518.56 = 42,476.04 : x
2. Step 2: Convert to fraction form
   76,465.20/105,518.56 = 42,476.04/x
3. Step 3: Cross multiply
   76,465.20x = 105,518.56 × 42,476.04
4. Step 4: Simplify right side
   76,465.20x = 4,482,010,575.30
5. Step 5: Solve for x
   x = 4,482,010,575.30/76,465.20
6. Step 6: Final answer
   x = 58,615.04