Finding the Fourth Proportional to 110,892.81, 152,978.73 and 72,635.80

Step by Step Solution

1. Step 1: Write the proportion equation
   110,892.81 : 152,978.73 = 72,635.80 : x
2. Step 2: Convert to fraction form
   110,892.81/152,978.73 = 72,635.80/x
3. Step 3: Cross multiply
   110,892.81x = 152,978.73 × 72,635.80
4. Step 4: Simplify right side
   110,892.81x = 11,111,732,436.53
5. Step 5: Solve for x
   x = 11,111,732,436.53/110,892.81
6. Step 6: Final answer
   x = 100,202.46