Finding the Fourth Proportional to 272,071.62, 408,106.89 and 72,392.00

Step by Step Solution

1. Step 1: Write the proportion equation
   272,071.62 : 408,106.89 = 72,392.00 : x
2. Step 2: Convert to fraction form
   272,071.62/408,106.89 = 72,392.00/x
3. Step 3: Cross multiply
   272,071.62x = 408,106.89 × 72,392.00
4. Step 4: Simplify right side
   272,071.62x = 29,543,671,940.35
5. Step 5: Solve for x
   x = 29,543,671,940.35/272,071.62
6. Step 6: Final answer
   x = 108,587.85