Finding the Fourth Proportional to 116,424, 160,665.12 and 63,432

Step by Step Solution

1. Step 1: Write the proportion equation
   116,424 : 160,665.12 = 63,432 : x
2. Step 2: Convert to fraction form
   116,424/160,665.12 = 63,432/x
3. Step 3: Cross multiply
   116,424x = 160,665.12 × 63,432
4. Step 4: Simplify right side
   116,424x = 10,191,309,891.84
5. Step 5: Solve for x
   x = 10,191,309,891.84/116,424
6. Step 6: Final answer
   x = 87,536.16