Finding the Fourth Proportional to 21,061,090.88, 31,534,865.66 and 13,756,462.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,061,090.88 : 31,534,865.66 = 13,756,462.03 : x
2. Step 2: Convert to fraction form
   21,061,090.88/31,534,865.66 = 13,756,462.03/x
3. Step 3: Cross multiply
   21,061,090.88x = 31,534,865.66 × 13,756,462.03
4. Step 4: Simplify right side
   21,061,090.88x = 433,808,182,028,494.88
5. Step 5: Solve for x
   x = 433,808,182,028,494.88/21,061,090.88
6. Step 6: Final answer
   x = 20,597,612.18