Finding the Fourth Proportional to 166,478.72, 249,601.42 and 61,284.04

Step by Step Solution

1. Step 1: Write the proportion equation
   166,478.72 : 249,601.42 = 61,284.04 : x
2. Step 2: Convert to fraction form
   166,478.72/249,601.42 = 61,284.04/x
3. Step 3: Cross multiply
   166,478.72x = 249,601.42 × 61,284.04
4. Step 4: Simplify right side
   166,478.72x = 15,296,583,407.34
5. Step 5: Solve for x
   x = 15,296,583,407.34/166,478.72
6. Step 6: Final answer
   x = 91,883.12