Finding the Fourth Proportional to 99,521.90, 137,346.00 and 74,948.73

Step by Step Solution

1. Step 1: Write the proportion equation
   99,521.90 : 137,346.00 = 74,948.73 : x
2. Step 2: Convert to fraction form
   99,521.90/137,346.00 = 74,948.73/x
3. Step 3: Cross multiply
   99,521.90x = 137,346.00 × 74,948.73
4. Step 4: Simplify right side
   99,521.90x = 10,293,907,474.47
5. Step 5: Solve for x
   x = 10,293,907,474.47/99,521.90
6. Step 6: Final answer
   x = 103,433.59