Finding the Fourth Proportional to 103,620.18, 155,392.20 and 37,042.23

Step by Step Solution

1. Step 1: Write the proportion equation
   103,620.18 : 155,392.20 = 37,042.23 : x
2. Step 2: Convert to fraction form
   103,620.18/155,392.20 = 37,042.23/x
3. Step 3: Cross multiply
   103,620.18x = 155,392.20 × 37,042.23
4. Step 4: Simplify right side
   103,620.18x = 5,756,073,612.61
5. Step 5: Solve for x
   x = 5,756,073,612.61/103,620.18
6. Step 6: Final answer
   x = 55,549.74