Finding the Fourth Proportional to 13,223,685.30, 18,249,142.53 and 7,343,418.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,223,685.30 : 18,249,142.53 = 7,343,418.42 : x
2. Step 2: Convert to fraction form
   13,223,685.30/18,249,142.53 = 7,343,418.42/x
3. Step 3: Cross multiply
   13,223,685.30x = 18,249,142.53 × 7,343,418.42
4. Step 4: Simplify right side
   13,223,685.30x = 134,011,089,404,007.41
5. Step 5: Solve for x
   x = 134,011,089,404,007.41/13,223,685.30
6. Step 6: Final answer
   x = 10,134,171.10