Finding the Fourth Proportional to 22,142,407.27, 30,529,374.79 and 18,208,415.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142,407.27 : 30,529,374.79 = 18,208,415.47 : x
2. Step 2: Convert to fraction form
   22,142,407.27/30,529,374.79 = 18,208,415.47/x
3. Step 3: Cross multiply
   22,142,407.27x = 30,529,374.79 × 18,208,415.47
4. Step 4: Simplify right side
   22,142,407.27x = 555,891,540,063,017.12
5. Step 5: Solve for x
   x = 555,891,540,063,017.12/22,142,407.27
6. Step 6: Final answer
   x = 25,105,289.29