Finding the Fourth Proportional to 117,772.18, 162,443.27 and 77,473.06

Step by Step Solution

1. Step 1: Write the proportion equation
   117,772.18 : 162,443.27 = 77,473.06 : x
2. Step 2: Convert to fraction form
   117,772.18/162,443.27 = 77,473.06/x
3. Step 3: Cross multiply
   117,772.18x = 162,443.27 × 77,473.06
4. Step 4: Simplify right side
   117,772.18x = 12,584,976,990.88
5. Step 5: Solve for x
   x = 12,584,976,990.88/117,772.18
6. Step 6: Final answer
   x = 106,858.66