Finding the Fourth Proportional to 152,301.53, 228,316.59 and 72,290.13

Step by Step Solution

1. Step 1: Write the proportion equation
   152,301.53 : 228,316.59 = 72,290.13 : x
2. Step 2: Convert to fraction form
   152,301.53/228,316.59 = 72,290.13/x
3. Step 3: Cross multiply
   152,301.53x = 228,316.59 × 72,290.13
4. Step 4: Simplify right side
   152,301.53x = 16,505,036,152.98
5. Step 5: Solve for x
   x = 16,505,036,152.98/152,301.53
6. Step 6: Final answer
   x = 108,370.79