Finding the Fourth Proportional to 161,947.58, 223,487.82 and 93,978.35

Step by Step Solution

1. Step 1: Write the proportion equation
   161,947.58 : 223,487.82 = 93,978.35 : x
2. Step 2: Convert to fraction form
   161,947.58/223,487.82 = 93,978.35/x
3. Step 3: Cross multiply
   161,947.58x = 223,487.82 × 93,978.35
4. Step 4: Simplify right side
   161,947.58x = 21,003,017,050.05
5. Step 5: Solve for x
   x = 21,003,017,050.05/161,947.58
6. Step 6: Final answer
   x = 129,690.22