Finding the Fourth Proportional to 37,819,357.12, 56,746,752 and 18,639,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,819,357.12 : 56,746,752 = 18,639,658.72 : x
2. Step 2: Convert to fraction form
   37,819,357.12/56,746,752 = 18,639,658.72/x
3. Step 3: Cross multiply
   37,819,357.12x = 56,746,752 × 18,639,658.72
4. Step 4: Simplify right side
   37,819,357.12x = 1,057,740,090,748,477.38
5. Step 5: Solve for x
   x = 1,057,740,090,748,477.38/37,819,357.12
6. Step 6: Final answer
   x = 27,968,219.75