Finding the Fourth Proportional to 69,912.87, 96,536.72 and 56,994.22

Step by Step Solution

1. Step 1: Write the proportion equation
   69,912.87 : 96,536.72 = 56,994.22 : x
2. Step 2: Convert to fraction form
   69,912.87/96,536.72 = 56,994.22/x
3. Step 3: Cross multiply
   69,912.87x = 96,536.72 × 56,994.22
4. Step 4: Simplify right side
   69,912.87x = 5,502,035,057.76
5. Step 5: Solve for x
   x = 5,502,035,057.76/69,912.87
6. Step 6: Final answer
   x = 78,698.46