Finding the Fourth Proportional to 100,483.95, 138,667.27 and 55,162.69

Step by Step Solution

1. Step 1: Write the proportion equation
   100,483.95 : 138,667.27 = 55,162.69 : x
2. Step 2: Convert to fraction form
   100,483.95/138,667.27 = 55,162.69/x
3. Step 3: Cross multiply
   100,483.95x = 138,667.27 × 55,162.69
4. Step 4: Simplify right side
   100,483.95x = 7,649,259,628.16
5. Step 5: Solve for x
   x = 7,649,259,628.16/100,483.95
6. Step 6: Final answer
   x = 76,124.19