Finding the Fourth Proportional to 34,234,479.40, 47,248,426.04 and 21,185,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,234,479.40 : 47,248,426.04 = 21,185,940.72 : x
2. Step 2: Convert to fraction form
   34,234,479.40/47,248,426.04 = 21,185,940.72/x
3. Step 3: Cross multiply
   34,234,479.40x = 47,248,426.04 × 21,185,940.72
4. Step 4: Simplify right side
   34,234,479.40x = 1,001,002,353,196,744.25
5. Step 5: Solve for x
   x = 1,001,002,353,196,744.25/34,234,479.40
6. Step 6: Final answer
   x = 29,239,596.18