Finding the Fourth Proportional to 52,021,735.91, 71,789,970.59 and 31,113,768.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,021,735.91 : 71,789,970.59 = 31,113,768.20 : x
2. Step 2: Convert to fraction form
   52,021,735.91/71,789,970.59 = 31,113,768.20/x
3. Step 3: Cross multiply
   52,021,735.91x = 71,789,970.59 × 31,113,768.20
4. Step 4: Simplify right side
   52,021,735.91x = 2,233,656,504,045,983.25
5. Step 5: Solve for x
   x = 2,233,656,504,045,983.25/52,021,735.91
6. Step 6: Final answer
   x = 42,936,985.18