Finding the Fourth Proportional to 99,846.09, 149,004.93 and 89,196.53

Step by Step Solution

1. Step 1: Write the proportion equation
   99,846.09 : 149,004.93 = 89,196.53 : x
2. Step 2: Convert to fraction form
   99,846.09/149,004.93 = 89,196.53/x
3. Step 3: Cross multiply
   99,846.09x = 149,004.93 × 89,196.53
4. Step 4: Simplify right side
   99,846.09x = 13,290,721,963.87
5. Step 5: Solve for x
   x = 13,290,721,963.87/99,846.09
6. Step 6: Final answer
   x = 133,112.09