Finding the Fourth Proportional to 31,683,906.72, 43,759,455.12 and 21,413,054.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,683,906.72 : 43,759,455.12 = 21,413,054.88 : x
2. Step 2: Convert to fraction form
   31,683,906.72/43,759,455.12 = 21,413,054.88/x
3. Step 3: Cross multiply
   31,683,906.72x = 43,759,455.12 × 21,413,054.88
4. Step 4: Simplify right side
   31,683,906.72x = 937,023,614,003,456.88
5. Step 5: Solve for x
   x = 937,023,614,003,456.88/31,683,906.72
6. Step 6: Final answer
   x = 29,574,118.57