Finding the Fourth Proportional to 37,392.32, 56,098.56 and 12,436.40

Step by Step Solution

1. Step 1: Write the proportion equation
   37,392.32 : 56,098.56 = 12,436.40 : x
2. Step 2: Convert to fraction form
   37,392.32/56,098.56 = 12,436.40/x
3. Step 3: Cross multiply
   37,392.32x = 56,098.56 × 12,436.40
4. Step 4: Simplify right side
   37,392.32x = 697,664,131.58
5. Step 5: Solve for x
   x = 697,664,131.58/37,392.32
6. Step 6: Final answer
   x = 18,657.95