Finding the Fourth Proportional to 101,074.58, 139,483.56 and 55,753.80

Step by Step Solution

1. Step 1: Write the proportion equation
   101,074.58 : 139,483.56 = 55,753.80 : x
2. Step 2: Convert to fraction form
   101,074.58/139,483.56 = 55,753.80/x
3. Step 3: Cross multiply
   101,074.58x = 139,483.56 × 55,753.80
4. Step 4: Simplify right side
   101,074.58x = 7,776,738,507.53
5. Step 5: Solve for x
   x = 7,776,738,507.53/101,074.58
6. Step 6: Final answer
   x = 76,940.60