Finding the Fourth Proportional to 103,667.76, 143,061.72 and 58,955.76

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.76 : 143,061.72 = 58,955.76 : x
2. Step 2: Convert to fraction form
   103,667.76/143,061.72 = 58,955.76/x
3. Step 3: Cross multiply
   103,667.76x = 143,061.72 × 58,955.76
4. Step 4: Simplify right side
   103,667.76x = 8,434,312,429.51
5. Step 5: Solve for x
   x = 8,434,312,429.51/103,667.76
6. Step 6: Final answer
   x = 81,359.07