Finding the Fourth Proportional to 101,181.42, 139,630.32 and 56,469.42

Step by Step Solution

1. Step 1: Write the proportion equation
   101,181.42 : 139,630.32 = 56,469.42 : x
2. Step 2: Convert to fraction form
   101,181.42/139,630.32 = 56,469.42/x
3. Step 3: Cross multiply
   101,181.42x = 139,630.32 × 56,469.42
4. Step 4: Simplify right side
   101,181.42x = 7,884,843,184.81
5. Step 5: Solve for x
   x = 7,884,843,184.81/101,181.42
6. Step 6: Final answer
   x = 77,927.78