Finding the Fourth Proportional to 69,303.34, 103,970.62 and 21,921.30

Step by Step Solution

1. Step 1: Write the proportion equation
   69,303.34 : 103,970.62 = 21,921.30 : x
2. Step 2: Convert to fraction form
   69,303.34/103,970.62 = 21,921.30/x
3. Step 3: Cross multiply
   69,303.34x = 103,970.62 × 21,921.30
4. Step 4: Simplify right side
   69,303.34x = 2,279,171,152.21
5. Step 5: Solve for x
   x = 2,279,171,152.21/69,303.34
6. Step 6: Final answer
   x = 32,886.89