Finding the Fourth Proportional to 37,936, 56,929.92 and 13,312

Step by Step Solution

1. Step 1: Write the proportion equation
   37,936 : 56,929.92 = 13,312 : x
2. Step 2: Convert to fraction form
   37,936/56,929.92 = 13,312/x
3. Step 3: Cross multiply
   37,936x = 56,929.92 × 13,312
4. Step 4: Simplify right side
   37,936x = 757,851,095.04
5. Step 5: Solve for x
   x = 757,851,095.04/37,936
6. Step 6: Final answer
   x = 19,977.10