Finding the Fourth Proportional to 76,385.50, 105,412.71 and 42,852.22

Step by Step Solution

1. Step 1: Write the proportion equation
   76,385.50 : 105,412.71 = 42,852.22 : x
2. Step 2: Convert to fraction form
   76,385.50/105,412.71 = 42,852.22/x
3. Step 3: Cross multiply
   76,385.50x = 105,412.71 × 42,852.22
4. Step 4: Simplify right side
   76,385.50x = 4,517,168,639.72
5. Step 5: Solve for x
   x = 4,517,168,639.72/76,385.50
6. Step 6: Final answer
   x = 59,136.47