Finding the Fourth Proportional to 21,762,000.42, 30,019,089.42 and 13,599,066.66

Step by Step Solution

1. Step 1: Write the proportion equation
   21,762,000.42 : 30,019,089.42 = 13,599,066.66 : x
2. Step 2: Convert to fraction form
   21,762,000.42/30,019,089.42 = 13,599,066.66/x
3. Step 3: Cross multiply
   21,762,000.42x = 30,019,089.42 × 13,599,066.66
4. Step 4: Simplify right side
   21,762,000.42x = 408,231,598,095,080.75
5. Step 5: Solve for x
   x = 408,231,598,095,080.75/21,762,000.42
6. Step 6: Final answer
   x = 18,758,918.77