Finding the Fourth Proportional to 116,821.71, 161,213.82 and 63,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,821.71 : 161,213.82 = 63,106.72 : x
2. Step 2: Convert to fraction form
   116,821.71/161,213.82 = 63,106.72/x
3. Step 3: Cross multiply
   116,821.71x = 161,213.82 × 63,106.72
4. Step 4: Simplify right side
   116,821.71x = 10,173,674,592.80
5. Step 5: Solve for x
   x = 10,173,674,592.80/116,821.71
6. Step 6: Final answer
   x = 87,087.19