Finding the Fourth Proportional to 88,851.69, 133,300.91 and 31,931.35

Step by Step Solution

1. Step 1: Write the proportion equation
   88,851.69 : 133,300.91 = 31,931.35 : x
2. Step 2: Convert to fraction form
   88,851.69/133,300.91 = 31,931.35/x
3. Step 3: Cross multiply
   88,851.69x = 133,300.91 × 31,931.35
4. Step 4: Simplify right side
   88,851.69x = 4,256,477,639.36
5. Step 5: Solve for x
   x = 4,256,477,639.36/88,851.69
6. Step 6: Final answer
   x = 47,905.42