Finding the Fourth Proportional to 85,364,722.72, 128,067,454.50 and 27,857,100.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85,364,722.72 : 128,067,454.50 = 27,857,100.88 : x
2. Step 2: Convert to fraction form
   85,364,722.72/128,067,454.50 = 27,857,100.88/x
3. Step 3: Cross multiply
   85,364,722.72x = 128,067,454.50 × 27,857,100.88
4. Step 4: Simplify right side
   85,364,722.72x = 3,567,587,999,451,310
5. Step 5: Solve for x
   x = 3,567,587,999,451,310/85,364,722.72
6. Step 6: Final answer
   x = 41,792,298.81