Finding the Fourth Proportional to 54,290,336.22, 81,434,793.52 and 13,350,128.76

Step by Step Solution

1. Step 1: Write the proportion equation
   54,290,336.22 : 81,434,793.52 = 13,350,128.76 : x
2. Step 2: Convert to fraction form
   54,290,336.22/81,434,793.52 = 13,350,128.76/x
3. Step 3: Cross multiply
   54,290,336.22x = 81,434,793.52 × 13,350,128.76
4. Step 4: Simplify right side
   54,290,336.22x = 1,087,164,979,036,013.50
5. Step 5: Solve for x
   x = 1,087,164,979,036,013.50/54,290,336.22
6. Step 6: Final answer
   x = 20,025,018.35