Finding the Fourth Proportional to 76,700.04, 105,878.71 and 51,564.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,700.04 : 105,878.71 = 51,564.12 : x
2. Step 2: Convert to fraction form
   76,700.04/105,878.71 = 51,564.12/x
3. Step 3: Cross multiply
   76,700.04x = 105,878.71 × 51,564.12
4. Step 4: Simplify right side
   76,700.04x = 5,459,541,978.49
5. Step 5: Solve for x
   x = 5,459,541,978.49/76,700.04
6. Step 6: Final answer
   x = 71,180.44