Finding the Fourth Proportional to 72,326,004.53, 99,810,793.89 and 39,286,805.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,326,004.53 : 99,810,793.89 = 39,286,805.31 : x
2. Step 2: Convert to fraction form
   72,326,004.53/99,810,793.89 = 39,286,805.31/x
3. Step 3: Cross multiply
   72,326,004.53x = 99,810,793.89 × 39,286,805.31
4. Step 4: Simplify right side
   72,326,004.53x = 3,921,247,227,392,968
5. Step 5: Solve for x
   x = 3,921,247,227,392,968/72,326,004.53
6. Step 6: Final answer
   x = 54,216,284.35