Finding the Fourth Proportional to 31,592,164.52, 47,390,019.42 and 8,871,290.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,592,164.52 : 47,390,019.42 = 8,871,290.28 : x
2. Step 2: Convert to fraction form
   31,592,164.52/47,390,019.42 = 8,871,290.28/x
3. Step 3: Cross multiply
   31,592,164.52x = 47,390,019.42 × 8,871,290.28
4. Step 4: Simplify right side
   31,592,164.52x = 420,410,618,649,657.25
5. Step 5: Solve for x
   x = 420,410,618,649,657.25/31,592,164.52
6. Step 6: Final answer
   x = 13,307,433.19