Finding the Fourth Proportional to 101,224.62, 139,690.71 and 55,901.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,224.62 : 139,690.71 = 55,901.34 : x
2. Step 2: Convert to fraction form
   101,224.62/139,690.71 = 55,901.34/x
3. Step 3: Cross multiply
   101,224.62x = 139,690.71 × 55,901.34
4. Step 4: Simplify right side
   101,224.62x = 7,808,897,874.55
5. Step 5: Solve for x
   x = 7,808,897,874.55/101,224.62
6. Step 6: Final answer
   x = 77,144.25