Finding the Fourth Proportional to 76,385.25, 105,412.37 and 42,851.97

Step by Step Solution

1. Step 1: Write the proportion equation
   76,385.25 : 105,412.37 = 42,851.97 : x
2. Step 2: Convert to fraction form
   76,385.25/105,412.37 = 42,851.97/x
3. Step 3: Cross multiply
   76,385.25x = 105,412.37 × 42,851.97
4. Step 4: Simplify right side
   76,385.25x = 4,517,127,502.61
5. Step 5: Solve for x
   x = 4,517,127,502.61/76,385.25
6. Step 6: Final answer
   x = 59,136.12