Finding the Fourth Proportional to 103,888.79, 143,388.82 and 65,624.00

Step by Step Solution

1. Step 1: Write the proportion equation
   103,888.79 : 143,388.82 = 65,624.00 : x
2. Step 2: Convert to fraction form
   103,888.79/143,388.82 = 65,624.00/x
3. Step 3: Cross multiply
   103,888.79x = 143,388.82 × 65,624.00
4. Step 4: Simplify right side
   103,888.79x = 9,409,747,288.77
5. Step 5: Solve for x
   x = 9,409,747,288.77/103,888.79
6. Step 6: Final answer
   x = 90,575.19