Finding the Fourth Proportional to 90,326.29, 135,551.63 and 31,162.02

Step by Step Solution

1. Step 1: Write the proportion equation
   90,326.29 : 135,551.63 = 31,162.02 : x
2. Step 2: Convert to fraction form
   90,326.29/135,551.63 = 31,162.02/x
3. Step 3: Cross multiply
   90,326.29x = 135,551.63 × 31,162.02
4. Step 4: Simplify right side
   90,326.29x = 4,224,061,999.39
5. Step 5: Solve for x
   x = 4,224,061,999.39/90,326.29
6. Step 6: Final answer
   x = 46,764.48