Finding the Fourth Proportional to 70,700.76, 105,820.38 and 51,975.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,700.76 : 105,820.38 = 51,975.84 : x
2. Step 2: Convert to fraction form
   70,700.76/105,820.38 = 51,975.84/x
3. Step 3: Cross multiply
   70,700.76x = 105,820.38 × 51,975.84
4. Step 4: Simplify right side
   70,700.76x = 5,500,103,139.62
5. Step 5: Solve for x
   x = 5,500,103,139.62/70,700.76
6. Step 6: Final answer
   x = 77,794.12