Finding the Fourth Proportional to 199,123.51, 298,505.91 and 72,675.03

Step by Step Solution

1. Step 1: Write the proportion equation
   199,123.51 : 298,505.91 = 72,675.03 : x
2. Step 2: Convert to fraction form
   199,123.51/298,505.91 = 72,675.03/x
3. Step 3: Cross multiply
   199,123.51x = 298,505.91 × 72,675.03
4. Step 4: Simplify right side
   199,123.51x = 21,693,925,964.43
5. Step 5: Solve for x
   x = 21,693,925,964.43/199,123.51
6. Step 6: Final answer
   x = 108,947.08