Finding the Fourth Proportional to 42,923,472,492.42, 64,394,811,016.20 and 13,080,139,285.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42,923,472,492.42 : 64,394,811,016.20 = 13,080,139,285.23 : x
2. Step 2: Convert to fraction form
   42,923,472,492.42/64,394,811,016.20 = 13,080,139,285.23/x
3. Step 3: Cross multiply
   42,923,472,492.42x = 64,394,811,016.20 × 13,080,139,285.23
4. Step 4: Simplify right side
   42,923,472,492.42x = 842,293,097,337,959,088,128
5. Step 5: Solve for x
   x = 842,293,097,337,959,088,128/42,923,472,492.42
6. Step 6: Final answer
   x = 19,623,135,045.44