Finding the Fourth Proportional to 34,212.91, 47,212.89 and 19,105.15

Step by Step Solution

1. Step 1: Write the proportion equation
   34,212.91 : 47,212.89 = 19,105.15 : x
2. Step 2: Convert to fraction form
   34,212.91/47,212.89 = 19,105.15/x
3. Step 3: Cross multiply
   34,212.91x = 47,212.89 × 19,105.15
4. Step 4: Simplify right side
   34,212.91x = 902,009,275.11
5. Step 5: Solve for x
   x = 902,009,275.11/34,212.91
6. Step 6: Final answer
   x = 26,364.59