Finding the Fourth Proportional to 100,970.18, 139,333.17 and 55,648.02

Step by Step Solution

1. Step 1: Write the proportion equation
   100,970.18 : 139,333.17 = 55,648.02 : x
2. Step 2: Convert to fraction form
   100,970.18/139,333.17 = 55,648.02/x
3. Step 3: Cross multiply
   100,970.18x = 139,333.17 × 55,648.02
4. Step 4: Simplify right side
   100,970.18x = 7,753,615,030.82
5. Step 5: Solve for x
   x = 7,753,615,030.82/100,970.18
6. Step 6: Final answer
   x = 76,791.14