Finding the Fourth Proportional to 37,405.63, 56,117.59 and 12,445.61

Step by Step Solution

1. Step 1: Write the proportion equation
   37,405.63 : 56,117.59 = 12,445.61 : x
2. Step 2: Convert to fraction form
   37,405.63/56,117.59 = 12,445.61/x
3. Step 3: Cross multiply
   37,405.63x = 56,117.59 × 12,445.61
4. Step 4: Simplify right side
   37,405.63x = 698,417,748.46
5. Step 5: Solve for x
   x = 698,417,748.46/37,405.63
6. Step 6: Final answer
   x = 18,671.46