Finding the Fourth Proportional to 22,699,518.72, 31,326,090.56 and 12,386,807.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,699,518.72 : 31,326,090.56 = 12,386,807.68 : x
2. Step 2: Convert to fraction form
   22,699,518.72/31,326,090.56 = 12,386,807.68/x
3. Step 3: Cross multiply
   22,699,518.72x = 31,326,090.56 × 12,386,807.68
4. Step 4: Simplify right side
   22,699,518.72x = 388,030,259,132,983.50
5. Step 5: Solve for x
   x = 388,030,259,132,983.50/22,699,518.72
6. Step 6: Final answer
   x = 17,094,206.44