Finding the Fourth Proportional to 78,349.98, 108,212.00 and 52,812.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,349.98 : 108,212.00 = 52,812.30 : x
2. Step 2: Convert to fraction form
   78,349.98/108,212.00 = 52,812.30/x
3. Step 3: Cross multiply
   78,349.98x = 108,212.00 × 52,812.30
4. Step 4: Simplify right side
   78,349.98x = 5,714,924,343.54
5. Step 5: Solve for x
   x = 5,714,924,343.54/78,349.98
6. Step 6: Final answer
   x = 72,940.98