Finding the Fourth Proportional to 95,705.15, 132,080.74 and 55,419.63

Step by Step Solution

1. Step 1: Write the proportion equation
   95,705.15 : 132,080.74 = 55,419.63 : x
2. Step 2: Convert to fraction form
   95,705.15/132,080.74 = 55,419.63/x
3. Step 3: Cross multiply
   95,705.15x = 132,080.74 × 55,419.63
4. Step 4: Simplify right side
   95,705.15x = 7,319,865,418.81
5. Step 5: Solve for x
   x = 7,319,865,418.81/95,705.15
6. Step 6: Final answer
   x = 76,483.50