Finding the Fourth Proportional to 90,423.17, 135,603.54 and 37,100.09

Step by Step Solution

1. Step 1: Write the proportion equation
   90,423.17 : 135,603.54 = 37,100.09 : x
2. Step 2: Convert to fraction form
   90,423.17/135,603.54 = 37,100.09/x
3. Step 3: Cross multiply
   90,423.17x = 135,603.54 × 37,100.09
4. Step 4: Simplify right side
   90,423.17x = 5,030,902,860.30
5. Step 5: Solve for x
   x = 5,030,902,860.30/90,423.17
6. Step 6: Final answer
   x = 55,637.32