Finding the Fourth Proportional to 117,099.70, 161,598.71 and 63,385.76

Step by Step Solution

1. Step 1: Write the proportion equation
   117,099.70 : 161,598.71 = 63,385.76 : x
2. Step 2: Convert to fraction form
   117,099.70/161,598.71 = 63,385.76/x
3. Step 3: Cross multiply
   117,099.70x = 161,598.71 × 63,385.76
4. Step 4: Simplify right side
   117,099.70x = 10,243,057,048.37
5. Step 5: Solve for x
   x = 10,243,057,048.37/117,099.70
6. Step 6: Final answer
   x = 87,472.96