Finding the Fourth Proportional to 99,404, 137,180.40 and 54,692

Step by Step Solution

1. Step 1: Write the proportion equation
   99,404 : 137,180.40 = 54,692 : x
2. Step 2: Convert to fraction form
   99,404/137,180.40 = 54,692/x
3. Step 3: Cross multiply
   99,404x = 137,180.40 × 54,692
4. Step 4: Simplify right side
   99,404x = 7,502,670,436.80
5. Step 5: Solve for x
   x = 7,502,670,436.80/99,404
6. Step 6: Final answer
   x = 75,476.54