Finding the Fourth Proportional to 99,418.94, 137,193.98 and 54,097.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,418.94 : 137,193.98 = 54,097.10 : x
2. Step 2: Convert to fraction form
   99,418.94/137,193.98 = 54,097.10/x
3. Step 3: Cross multiply
   99,418.94x = 137,193.98 × 54,097.10
4. Step 4: Simplify right side
   99,418.94x = 7,421,795,499.00
5. Step 5: Solve for x
   x = 7,421,795,499.00/99,418.94
6. Step 6: Final answer
   x = 74,651.73