Finding the Fourth Proportional to 111,004.61, 153,200.39 and 72,796.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,004.61 : 153,200.39 = 72,796.31 : x
2. Step 2: Convert to fraction form
   111,004.61/153,200.39 = 72,796.31/x
3. Step 3: Cross multiply
   111,004.61x = 153,200.39 × 72,796.31
4. Step 4: Simplify right side
   111,004.61x = 11,152,421,952.58
5. Step 5: Solve for x
   x = 11,152,421,952.58/111,004.61
6. Step 6: Final answer
   x = 100,468.10