Finding the Fourth Proportional to 99,760.41, 137,667.53 and 54,437.23

Step by Step Solution

1. Step 1: Write the proportion equation
   99,760.41 : 137,667.53 = 54,437.23 : x
2. Step 2: Convert to fraction form
   99,760.41/137,667.53 = 54,437.23/x
3. Step 3: Cross multiply
   99,760.41x = 137,667.53 × 54,437.23
4. Step 4: Simplify right side
   99,760.41x = 7,494,239,302.32
5. Step 5: Solve for x
   x = 7,494,239,302.32/99,760.41
6. Step 6: Final answer
   x = 75,122.38