Finding the Fourth Proportional to 79,066.53, 109,046.86 and 56,398.28

Step by Step Solution

1. Step 1: Write the proportion equation
   79,066.53 : 109,046.86 = 56,398.28 : x
2. Step 2: Convert to fraction form
   79,066.53/109,046.86 = 56,398.28/x
3. Step 3: Cross multiply
   79,066.53x = 109,046.86 × 56,398.28
4. Step 4: Simplify right side
   79,066.53x = 6,150,054,657.17
5. Step 5: Solve for x
   x = 6,150,054,657.17/79,066.53
6. Step 6: Final answer
   x = 77,783.29