Finding the Fourth Proportional to 76,468.41, 105,522.84 and 42,479.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,468.41 : 105,522.84 = 42,479.10 : x
2. Step 2: Convert to fraction form
   76,468.41/105,522.84 = 42,479.10/x
3. Step 3: Cross multiply
   76,468.41x = 105,522.84 × 42,479.10
4. Step 4: Simplify right side
   76,468.41x = 4,482,515,272.64
5. Step 5: Solve for x
   x = 4,482,515,272.64/76,468.41
6. Step 6: Final answer
   x = 58,619.18