Finding the Fourth Proportional to 189,916.94, 262,080.89 and 105,032.18

Step by Step Solution

1. Step 1: Write the proportion equation
   189,916.94 : 262,080.89 = 105,032.18 : x
2. Step 2: Convert to fraction form
   189,916.94/262,080.89 = 105,032.18/x
3. Step 3: Cross multiply
   189,916.94x = 262,080.89 × 105,032.18
4. Step 4: Simplify right side
   189,916.94x = 27,526,925,377.47
5. Step 5: Solve for x
   x = 27,526,925,377.47/189,916.94
6. Step 6: Final answer
   x = 144,941.92