Finding the Fourth Proportional to 108,897.69, 150,274.92 and 61,153.05

Step by Step Solution

1. Step 1: Write the proportion equation
   108,897.69 : 150,274.92 = 61,153.05 : x
2. Step 2: Convert to fraction form
   108,897.69/150,274.92 = 61,153.05/x
3. Step 3: Cross multiply
   108,897.69x = 150,274.92 × 61,153.05
4. Step 4: Simplify right side
   108,897.69x = 9,189,769,696.51
5. Step 5: Solve for x
   x = 9,189,769,696.51/108,897.69
6. Step 6: Final answer
   x = 84,389.02