Finding the Fourth Proportional to 73,870.40, 103,681 and 73,870.40

Step by Step Solution

1. Step 1: Write the proportion equation
   73,870.40 : 103,681 = 73,870.40 : x
2. Step 2: Convert to fraction form
   73,870.40/103,681 = 73,870.40/x
3. Step 3: Cross multiply
   73,870.40x = 103,681 × 73,870.40
4. Step 4: Simplify right side
   73,870.40x = 7,658,956,942.40
5. Step 5: Solve for x
   x = 7,658,956,942.40/73,870.40
6. Step 6: Final answer
   x = 103,681