Finding the Fourth Proportional to 99,369.05, 137,129.56 and 54,046.98

Step by Step Solution

1. Step 1: Write the proportion equation
   99,369.05 : 137,129.56 = 54,046.98 : x
2. Step 2: Convert to fraction form
   99,369.05/137,129.56 = 54,046.98/x
3. Step 3: Cross multiply
   99,369.05x = 137,129.56 × 54,046.98
4. Step 4: Simplify right side
   99,369.05x = 7,411,438,451.61
5. Step 5: Solve for x
   x = 7,411,438,451.61/99,369.05
6. Step 6: Final answer
   x = 74,584.98