Finding the Fourth Proportional to 31,978,371.30, 47,956,815.54 and 10,407,899.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978,371.30 : 47,956,815.54 = 10,407,899.99 : x
2. Step 2: Convert to fraction form
   31,978,371.30/47,956,815.54 = 10,407,899.99/x
3. Step 3: Cross multiply
   31,978,371.30x = 47,956,815.54 × 10,407,899.99
4. Step 4: Simplify right side
   31,978,371.30x = 499,129,739,739,413.75
5. Step 5: Solve for x
   x = 499,129,739,739,413.75/31,978,371.30
6. Step 6: Final answer
   x = 15,608,354.00