Finding the Fourth Proportional to 58,978,056.97, 81,351,724.30 and 39,131,392.83

Step by Step Solution

1. Step 1: Write the proportion equation
   58,978,056.97 : 81,351,724.30 = 39,131,392.83 : x
2. Step 2: Convert to fraction form
   58,978,056.97/81,351,724.30 = 39,131,392.83/x
3. Step 3: Cross multiply
   58,978,056.97x = 81,351,724.30 × 39,131,392.83
4. Step 4: Simplify right side
   58,978,056.97x = 3,183,406,280,981,156.50
5. Step 5: Solve for x
   x = 3,183,406,280,981,156.50/58,978,056.97
6. Step 6: Final answer
   x = 53,976,113.23