Finding the Fourth Proportional to 76,472.53, 105,520.40 and 42,477.89

Step by Step Solution

1. Step 1: Write the proportion equation
   76,472.53 : 105,520.40 = 42,477.89 : x
2. Step 2: Convert to fraction form
   76,472.53/105,520.40 = 42,477.89/x
3. Step 3: Cross multiply
   76,472.53x = 105,520.40 × 42,477.89
4. Step 4: Simplify right side
   76,472.53x = 4,482,284,134.12
5. Step 5: Solve for x
   x = 4,482,284,134.12/76,472.53
6. Step 6: Final answer
   x = 58,613.00