Finding the Fourth Proportional to 72,681.42, 100,271.88 and 53,606.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,681.42 : 100,271.88 = 53,606.98 : x
2. Step 2: Convert to fraction form
   72,681.42/100,271.88 = 53,606.98/x
3. Step 3: Cross multiply
   72,681.42x = 100,271.88 × 53,606.98
4. Step 4: Simplify right side
   72,681.42x = 5,375,272,665.72
5. Step 5: Solve for x
   x = 5,375,272,665.72/72,681.42
6. Step 6: Final answer
   x = 73,956.63