Finding the Fourth Proportional to 40,011,867.12, 55,216,641.72 and 21,677,152.62

Step by Step Solution

1. Step 1: Write the proportion equation
   40,011,867.12 : 55,216,641.72 = 21,677,152.62 : x
2. Step 2: Convert to fraction form
   40,011,867.12/55,216,641.72 = 21,677,152.62/x
3. Step 3: Cross multiply
   40,011,867.12x = 55,216,641.72 × 21,677,152.62
4. Step 4: Simplify right side
   40,011,867.12x = 1,196,939,569,728,299.25
5. Step 5: Solve for x
   x = 1,196,939,569,728,299.25/40,011,867.12
6. Step 6: Final answer
   x = 29,914,614.24