Finding the Fourth Proportional to 108,735.82, 162,435.32 and 78,491.66

Step by Step Solution

1. Step 1: Write the proportion equation
   108,735.82 : 162,435.32 = 78,491.66 : x
2. Step 2: Convert to fraction form
   108,735.82/162,435.32 = 78,491.66/x
3. Step 3: Cross multiply
   108,735.82x = 162,435.32 × 78,491.66
4. Step 4: Simplify right side
   108,735.82x = 12,749,817,897.50
5. Step 5: Solve for x
   x = 12,749,817,897.50/108,735.82
6. Step 6: Final answer
   x = 117,255.00