Finding the Fourth Proportional to 114,071.21, 157,424.17 and 65,680.32

Step by Step Solution

1. Step 1: Write the proportion equation
   114,071.21 : 157,424.17 = 65,680.32 : x
2. Step 2: Convert to fraction form
   114,071.21/157,424.17 = 65,680.32/x
3. Step 3: Cross multiply
   114,071.21x = 157,424.17 × 65,680.32
4. Step 4: Simplify right side
   114,071.21x = 10,339,669,861.33
5. Step 5: Solve for x
   x = 10,339,669,861.33/114,071.21
6. Step 6: Final answer
   x = 90,642.24