Finding the Fourth Proportional to 99,483.72, 149,131.78 and 49,516.58

Step by Step Solution

1. Step 1: Write the proportion equation
   99,483.72 : 149,131.78 = 49,516.58 : x
2. Step 2: Convert to fraction form
   99,483.72/149,131.78 = 49,516.58/x
3. Step 3: Cross multiply
   99,483.72x = 149,131.78 × 49,516.58
4. Step 4: Simplify right side
   99,483.72x = 7,384,495,714.91
5. Step 5: Solve for x
   x = 7,384,495,714.91/99,483.72
6. Step 6: Final answer
   x = 74,228.18