Finding the Fourth Proportional to 101,011.27, 139,391.34 and 55,069.91

Step by Step Solution

1. Step 1: Write the proportion equation
   101,011.27 : 139,391.34 = 55,069.91 : x
2. Step 2: Convert to fraction form
   101,011.27/139,391.34 = 55,069.91/x
3. Step 3: Cross multiply
   101,011.27x = 139,391.34 × 55,069.91
4. Step 4: Simplify right side
   101,011.27x = 7,676,268,548.58
5. Step 5: Solve for x
   x = 7,676,268,548.58/101,011.27
6. Step 6: Final answer
   x = 75,994.18