Finding the Fourth Proportional to 191,897.31, 287,847.45 and 73,540.38

Step by Step Solution

1. Step 1: Write the proportion equation
   191,897.31 : 287,847.45 = 73,540.38 : x
2. Step 2: Convert to fraction form
   191,897.31/287,847.45 = 73,540.38/x
3. Step 3: Cross multiply
   191,897.31x = 287,847.45 × 73,540.38
4. Step 4: Simplify right side
   191,897.31x = 21,168,410,855.03
5. Step 5: Solve for x
   x = 21,168,410,855.03/191,897.31
6. Step 6: Final answer
   x = 110,311.14