Finding the Fourth Proportional to 37,602.75, 56,399.40 and 12,300.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,602.75 : 56,399.40 = 12,300.15 : x
2. Step 2: Convert to fraction form
   37,602.75/56,399.40 = 12,300.15/x
3. Step 3: Cross multiply
   37,602.75x = 56,399.40 × 12,300.15
4. Step 4: Simplify right side
   37,602.75x = 693,721,079.91
5. Step 5: Solve for x
   x = 693,721,079.91/37,602.75
6. Step 6: Final answer
   x = 18,448.68