Finding the Fourth Proportional to 101,152.12, 139,587.60 and 55,828.48

Step by Step Solution

1. Step 1: Write the proportion equation
   101,152.12 : 139,587.60 = 55,828.48 : x
2. Step 2: Convert to fraction form
   101,152.12/139,587.60 = 55,828.48/x
3. Step 3: Cross multiply
   101,152.12x = 139,587.60 × 55,828.48
4. Step 4: Simplify right side
   101,152.12x = 7,792,963,534.85
5. Step 5: Solve for x
   x = 7,792,963,534.85/101,152.12
6. Step 6: Final answer
   x = 77,042.02