Finding the Fourth Proportional to 117,123.98, 161,631 and 63,409.46

Step by Step Solution

1. Step 1: Write the proportion equation
   117,123.98 : 161,631 = 63,409.46 : x
2. Step 2: Convert to fraction form
   117,123.98/161,631 = 63,409.46/x
3. Step 3: Cross multiply
   117,123.98x = 161,631 × 63,409.46
4. Step 4: Simplify right side
   117,123.98x = 10,248,934,429.26
5. Step 5: Solve for x
   x = 10,248,934,429.26/117,123.98
6. Step 6: Final answer
   x = 87,505.00