Finding the Fourth Proportional to 108,437.00, 149,729.11 and 72,173.30

Step by Step Solution

1. Step 1: Write the proportion equation
   108,437.00 : 149,729.11 = 72,173.30 : x
2. Step 2: Convert to fraction form
   108,437.00/149,729.11 = 72,173.30/x
3. Step 3: Cross multiply
   108,437.00x = 149,729.11 × 72,173.30
4. Step 4: Simplify right side
   108,437.00x = 10,806,443,045.68
5. Step 5: Solve for x
   x = 10,806,443,045.68/108,437.00
6. Step 6: Final answer
   x = 99,656.42