Finding the Fourth Proportional to 109,510.09, 164,541.93 and 105,081.43

Step by Step Solution

1. Step 1: Write the proportion equation
   109,510.09 : 164,541.93 = 105,081.43 : x
2. Step 2: Convert to fraction form
   109,510.09/164,541.93 = 105,081.43/x
3. Step 3: Cross multiply
   109,510.09x = 164,541.93 × 105,081.43
4. Step 4: Simplify right side
   109,510.09x = 17,290,301,299.36
5. Step 5: Solve for x
   x = 17,290,301,299.36/109,510.09
6. Step 6: Final answer
   x = 157,887.75