Finding the Fourth Proportional to 105,916.32, 158,896.35 and 31,038.91

Step by Step Solution

1. Step 1: Write the proportion equation
   105,916.32 : 158,896.35 = 31,038.91 : x
2. Step 2: Convert to fraction form
   105,916.32/158,896.35 = 31,038.91/x
3. Step 3: Cross multiply
   105,916.32x = 158,896.35 × 31,038.91
4. Step 4: Simplify right side
   105,916.32x = 4,931,969,109.74
5. Step 5: Solve for x
   x = 4,931,969,109.74/105,916.32
6. Step 6: Final answer
   x = 46,564.77