Finding the Fourth Proportional to 90,256.69, 135,397.59 and 37,654.07

Step by Step Solution

1. Step 1: Write the proportion equation
   90,256.69 : 135,397.59 = 37,654.07 : x
2. Step 2: Convert to fraction form
   90,256.69/135,397.59 = 37,654.07/x
3. Step 3: Cross multiply
   90,256.69x = 135,397.59 × 37,654.07
4. Step 4: Simplify right side
   90,256.69x = 5,098,270,143.42
5. Step 5: Solve for x
   x = 5,098,270,143.42/90,256.69
6. Step 6: Final answer
   x = 56,486.34