Finding the Fourth Proportional to 116,403, 160,636.16 and 63,411

Step by Step Solution

1. Step 1: Write the proportion equation
   116,403 : 160,636.16 = 63,411 : x
2. Step 2: Convert to fraction form
   116,403/160,636.16 = 63,411/x
3. Step 3: Cross multiply
   116,403x = 160,636.16 × 63,411
4. Step 4: Simplify right side
   116,403x = 10,186,099,541.76
5. Step 5: Solve for x
   x = 10,186,099,541.76/116,403
6. Step 6: Final answer
   x = 87,507.19