Finding the Fourth Proportional to 93,157.98, 139,562.01 and 72,279.42

Step by Step Solution

1. Step 1: Write the proportion equation
   93,157.98 : 139,562.01 = 72,279.42 : x
2. Step 2: Convert to fraction form
   93,157.98/139,562.01 = 72,279.42/x
3. Step 3: Cross multiply
   93,157.98x = 139,562.01 × 72,279.42
4. Step 4: Simplify right side
   93,157.98x = 10,087,461,136.83
5. Step 5: Solve for x
   x = 10,087,461,136.83/93,157.98
6. Step 6: Final answer
   x = 108,283.38