Finding the Fourth Proportional to 103,565.32, 143,009.82 and 98,251

Step by Step Solution

1. Step 1: Write the proportion equation
   103,565.32 : 143,009.82 = 98,251 : x
2. Step 2: Convert to fraction form
   103,565.32/143,009.82 = 98,251/x
3. Step 3: Cross multiply
   103,565.32x = 143,009.82 × 98,251
4. Step 4: Simplify right side
   103,565.32x = 14,050,857,824.82
5. Step 5: Solve for x
   x = 14,050,857,824.82/103,565.32
6. Step 6: Final answer
   x = 135,671.46