Finding the Fourth Proportional to 42,478,025.72, 63,691,410.96 and 16,218,576.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,478,025.72 : 63,691,410.96 = 16,218,576.18 : x
2. Step 2: Convert to fraction form
   42,478,025.72/63,691,410.96 = 16,218,576.18/x
3. Step 3: Cross multiply
   42,478,025.72x = 63,691,410.96 × 16,218,576.18
4. Step 4: Simplify right side
   42,478,025.72x = 1,032,984,000,666,446.88
5. Step 5: Solve for x
   x = 1,032,984,000,666,446.88/42,478,025.72
6. Step 6: Final answer
   x = 24,318,079.37