Finding the Fourth Proportional to 191,499.69, 287,269.20 and 73,270.47

Step by Step Solution

1. Step 1: Write the proportion equation
   191,499.69 : 287,269.20 = 73,270.47 : x
2. Step 2: Convert to fraction form
   191,499.69/287,269.20 = 73,270.47/x
3. Step 3: Cross multiply
   191,499.69x = 287,269.20 × 73,270.47
4. Step 4: Simplify right side
   191,499.69x = 21,048,349,300.52
5. Step 5: Solve for x
   x = 21,048,349,300.52/191,499.69
6. Step 6: Final answer
   x = 109,913.23