Finding the Fourth Proportional to 99,815.54, 149,598.71 and 49,909.91

Step by Step Solution

1. Step 1: Write the proportion equation
   99,815.54 : 149,598.71 = 49,909.91 : x
2. Step 2: Convert to fraction form
   99,815.54/149,598.71 = 49,909.91/x
3. Step 3: Cross multiply
   99,815.54x = 149,598.71 × 49,909.91
4. Step 4: Simplify right side
   99,815.54x = 7,466,458,152.22
5. Step 5: Solve for x
   x = 7,466,458,152.22/99,815.54
6. Step 6: Final answer
   x = 74,802.56