Finding the Fourth Proportional to 107,638.76, 161,499.15 and 48,460.82

Step by Step Solution

1. Step 1: Write the proportion equation
   107,638.76 : 161,499.15 = 48,460.82 : x
2. Step 2: Convert to fraction form
   107,638.76/161,499.15 = 48,460.82/x
3. Step 3: Cross multiply
   107,638.76x = 161,499.15 × 48,460.82
4. Step 4: Simplify right side
   107,638.76x = 7,826,381,238.30
5. Step 5: Solve for x
   x = 7,826,381,238.30/107,638.76
6. Step 6: Final answer
   x = 72,709.69