Finding the Fourth Proportional to 70,698.76, 105,817.38 and 51,973.84

Step by Step Solution

1. Step 1: Write the proportion equation
   70,698.76 : 105,817.38 = 51,973.84 : x
2. Step 2: Convert to fraction form
   70,698.76/105,817.38 = 51,973.84/x
3. Step 3: Cross multiply
   70,698.76x = 105,817.38 × 51,973.84
4. Step 4: Simplify right side
   70,698.76x = 5,499,735,577.34
5. Step 5: Solve for x
   x = 5,499,735,577.34/70,698.76
6. Step 6: Final answer
   x = 77,791.12