Finding the Fourth Proportional to 12,443,762.27, 17,172,465.33 and 7,219,880.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443,762.27 : 17,172,465.33 = 7,219,880.90 : x
2. Step 2: Convert to fraction form
   12,443,762.27/17,172,465.33 = 7,219,880.90/x
3. Step 3: Cross multiply
   12,443,762.27x = 17,172,465.33 × 7,219,880.90
4. Step 4: Simplify right side
   12,443,762.27x = 123,983,154,441,979.19
5. Step 5: Solve for x
   x = 123,983,154,441,979.19/12,443,762.27
6. Step 6: Final answer
   x = 9,963,478.23