Finding the Fourth Proportional to 31,451,410.27, 43,416,338.52 and 21,144,112.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,451,410.27 : 43,416,338.52 = 21,144,112.08 : x
2. Step 2: Convert to fraction form
   31,451,410.27/43,416,338.52 = 21,144,112.08/x
3. Step 3: Cross multiply
   31,451,410.27x = 43,416,338.52 × 21,144,112.08
4. Step 4: Simplify right side
   31,451,410.27x = 917,999,927,770,101.38
5. Step 5: Solve for x
   x = 917,999,927,770,101.38/31,451,410.27
6. Step 6: Final answer
   x = 29,187,878.06