Finding the Fourth Proportional to 13,118,423.62, 18,103,304.52 and 7,238,111.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,118,423.62 : 18,103,304.52 = 7,238,111.98 : x
2. Step 2: Convert to fraction form
   13,118,423.62/18,103,304.52 = 7,238,111.98/x
3. Step 3: Cross multiply
   13,118,423.62x = 18,103,304.52 × 7,238,111.98
4. Step 4: Simplify right side
   13,118,423.62x = 131,033,745,323,800.16
5. Step 5: Solve for x
   x = 131,033,745,323,800.16/13,118,423.62
6. Step 6: Final answer
   x = 9,988,528.28