Finding the Fourth Proportional to 37,901,995,868.61, 52,306,388,722.60 and 20,985,644,917.81

Step by Step Solution

1. Step 1: Write the proportion equation
   37,901,995,868.61 : 52,306,388,722.60 = 20,985,644,917.81 : x
2. Step 2: Convert to fraction form
   37,901,995,868.61/52,306,388,722.60 = 20,985,644,917.81/x
3. Step 3: Cross multiply
   37,901,995,868.61x = 52,306,388,722.60 × 20,985,644,917.81
4. Step 4: Simplify right side
   37,901,995,868.61x = 1,097,683,300,665,267,978,240
5. Step 5: Solve for x
   x = 1,097,683,300,665,267,978,240/37,901,995,868.61
6. Step 6: Final answer
   x = 28,961,094,937.34