Finding the Fourth Proportional to 100,973.96, 139,343.61 and 55,033.53

Step by Step Solution

1. Step 1: Write the proportion equation
   100,973.96 : 139,343.61 = 55,033.53 : x
2. Step 2: Convert to fraction form
   100,973.96/139,343.61 = 55,033.53/x
3. Step 3: Cross multiply
   100,973.96x = 139,343.61 × 55,033.53
4. Step 4: Simplify right side
   100,973.96x = 7,668,570,044.53
5. Step 5: Solve for x
   x = 7,668,570,044.53/100,973.96
6. Step 6: Final answer
   x = 75,946.02