Finding the Fourth Proportional to 37,400.76, 56,018.72 and 30,915.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,400.76 : 56,018.72 = 30,915.72 : x
2. Step 2: Convert to fraction form
   37,400.76/56,018.72 = 30,915.72/x
3. Step 3: Cross multiply
   37,400.76x = 56,018.72 × 30,915.72
4. Step 4: Simplify right side
   37,400.76x = 1,731,859,062.28
5. Step 5: Solve for x
   x = 1,731,859,062.28/37,400.76
6. Step 6: Final answer
   x = 46,305.45