Finding the Fourth Proportional to 90,736.17, 136,061.33 and 31,564.46

Step by Step Solution

1. Step 1: Write the proportion equation
   90,736.17 : 136,061.33 = 31,564.46 : x
2. Step 2: Convert to fraction form
   90,736.17/136,061.33 = 31,564.46/x
3. Step 3: Cross multiply
   90,736.17x = 136,061.33 × 31,564.46
4. Step 4: Simplify right side
   90,736.17x = 4,294,701,570.20
5. Step 5: Solve for x
   x = 4,294,701,570.20/90,736.17
6. Step 6: Final answer
   x = 47,331.75