Finding the Fourth Proportional to 180,055.89, 248,482.15 and 99,488.61

Step by Step Solution

1. Step 1: Write the proportion equation
   180,055.89 : 248,482.15 = 99,488.61 : x
2. Step 2: Convert to fraction form
   180,055.89/248,482.15 = 99,488.61/x
3. Step 3: Cross multiply
   180,055.89x = 248,482.15 × 99,488.61
4. Step 4: Simplify right side
   180,055.89x = 24,721,143,713.31
5. Step 5: Solve for x
   x = 24,721,143,713.31/180,055.89
6. Step 6: Final answer
   x = 137,297.06