Finding the Fourth Proportional to 65,078,513.34, 89,801,807.24 and 38,972,359.96

Step by Step Solution

1. Step 1: Write the proportion equation
   65,078,513.34 : 89,801,807.24 = 38,972,359.96 : x
2. Step 2: Convert to fraction form
   65,078,513.34/89,801,807.24 = 38,972,359.96/x
3. Step 3: Cross multiply
   65,078,513.34x = 89,801,807.24 × 38,972,359.96
4. Step 4: Simplify right side
   65,078,513.34x = 3,499,788,356,815,814
5. Step 5: Solve for x
   x = 3,499,788,356,815,814/65,078,513.34
6. Step 6: Final answer
   x = 53,777,939.56