Finding the Fourth Proportional to 39,957,825.68, 55,141,799.56 and 21,623,111.18

Step by Step Solution

1. Step 1: Write the proportion equation
   39,957,825.68 : 55,141,799.56 = 21,623,111.18 : x
2. Step 2: Convert to fraction form
   39,957,825.68/55,141,799.56 = 21,623,111.18/x
3. Step 3: Cross multiply
   39,957,825.68x = 55,141,799.56 × 21,623,111.18
4. Step 4: Simplify right side
   39,957,825.68x = 1,192,337,262,551,155
5. Step 5: Solve for x
   x = 1,192,337,262,551,155/39,957,825.68
6. Step 6: Final answer
   x = 29,839,893.49