Finding the Fourth Proportional to 366,111.41, 549,150.71 and 99,871.07

Step by Step Solution

1. Step 1: Write the proportion equation
   366,111.41 : 549,150.71 = 99,871.07 : x
2. Step 2: Convert to fraction form
   366,111.41/549,150.71 = 99,871.07/x
3. Step 3: Cross multiply
   366,111.41x = 549,150.71 × 99,871.07
4. Step 4: Simplify right side
   366,111.41x = 54,844,265,753.85
5. Step 5: Solve for x
   x = 54,844,265,753.85/366,111.41
6. Step 6: Final answer
   x = 149,802.12