Finding the Fourth Proportional to 72,326,004.21, 99,810,793.55 and 39,286,805.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72,326,004.21 : 99,810,793.55 = 39,286,805.06 : x
2. Step 2: Convert to fraction form
   72,326,004.21/99,810,793.55 = 39,286,805.06/x
3. Step 3: Cross multiply
   72,326,004.21x = 99,810,793.55 × 39,286,805.06
4. Step 4: Simplify right side
   72,326,004.21x = 3,921,247,188,886,321.50
5. Step 5: Solve for x
   x = 3,921,247,188,886,321.50/72,326,004.21
6. Step 6: Final answer
   x = 54,216,284.06