Finding the Fourth Proportional to 105,026.64, 144,886.74 and 71,047.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,026.64 : 144,886.74 = 71,047.02 : x
2. Step 2: Convert to fraction form
   105,026.64/144,886.74 = 71,047.02/x
3. Step 3: Cross multiply
   105,026.64x = 144,886.74 × 71,047.02
4. Step 4: Simplify right side
   105,026.64x = 10,293,771,114.51
5. Step 5: Solve for x
   x = 10,293,771,114.51/105,026.64
6. Step 6: Final answer
   x = 98,011.05