Finding the Fourth Proportional to 103,624.31, 143,001.55 and 58,912.31

Step by Step Solution

1. Step 1: Write the proportion equation
   103,624.31 : 143,001.55 = 58,912.31 : x
2. Step 2: Convert to fraction form
   103,624.31/143,001.55 = 58,912.31/x
3. Step 3: Cross multiply
   103,624.31x = 143,001.55 × 58,912.31
4. Step 4: Simplify right side
   103,624.31x = 8,424,552,075.22
5. Step 5: Solve for x
   x = 8,424,552,075.22/103,624.31
6. Step 6: Final answer
   x = 81,298.99