Finding the Fourth Proportional to 101,103, 139,522.14 and 56,391

Step by Step Solution

1. Step 1: Write the proportion equation
   101,103 : 139,522.14 = 56,391 : x
2. Step 2: Convert to fraction form
   101,103/139,522.14 = 56,391/x
3. Step 3: Cross multiply
   101,103x = 139,522.14 × 56,391
4. Step 4: Simplify right side
   101,103x = 7,867,792,996.74
5. Step 5: Solve for x
   x = 7,867,792,996.74/101,103
6. Step 6: Final answer
   x = 77,819.58