Finding the Fourth Proportional to 103,667.88, 143,064.54 and 58,347.48

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.88 : 143,064.54 = 58,347.48 : x
2. Step 2: Convert to fraction form
   103,667.88/143,064.54 = 58,347.48/x
3. Step 3: Cross multiply
   103,667.88x = 143,064.54 × 58,347.48
4. Step 4: Simplify right side
   103,667.88x = 8,347,455,386.36
5. Step 5: Solve for x
   x = 8,347,455,386.36/103,667.88
6. Step 6: Final answer
   x = 80,521.14