Finding the Fourth Proportional to 64,085.78, 88,423.38 and 37,212.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,085.78 : 88,423.38 = 37,212.09 : x
2. Step 2: Convert to fraction form
   64,085.78/88,423.38 = 37,212.09/x
3. Step 3: Cross multiply
   64,085.78x = 88,423.38 × 37,212.09
4. Step 4: Simplify right side
   64,085.78x = 3,290,418,774.66
5. Step 5: Solve for x
   x = 3,290,418,774.66/64,085.78
6. Step 6: Final answer
   x = 51,343.98