Finding the Fourth Proportional to 113,218.02, 156,237.59 and 64,818.33

Step by Step Solution

1. Step 1: Write the proportion equation
   113,218.02 : 156,237.59 = 64,818.33 : x
2. Step 2: Convert to fraction form
   113,218.02/156,237.59 = 64,818.33/x
3. Step 3: Cross multiply
   113,218.02x = 156,237.59 × 64,818.33
4. Step 4: Simplify right side
   113,218.02x = 10,127,059,342.93
5. Step 5: Solve for x
   x = 10,127,059,342.93/113,218.02
6. Step 6: Final answer
   x = 89,447.42