Finding the Fourth Proportional to 77,182.42, 106,409.64 and 55,654.15

Step by Step Solution

1. Step 1: Write the proportion equation
   77,182.42 : 106,409.64 = 55,654.15 : x
2. Step 2: Convert to fraction form
   77,182.42/106,409.64 = 55,654.15/x
3. Step 3: Cross multiply
   77,182.42x = 106,409.64 × 55,654.15
4. Step 4: Simplify right side
   77,182.42x = 5,922,138,066.01
5. Step 5: Solve for x
   x = 5,922,138,066.01/77,182.42
6. Step 6: Final answer
   x = 76,729.11