Finding the Fourth Proportional to 12,003,791.63, 18,005,700.42 and 5,618,528.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003,791.63 : 18,005,700.42 = 5,618,528.01 : x
2. Step 2: Convert to fraction form
   12,003,791.63/18,005,700.42 = 5,618,528.01/x
3. Step 3: Cross multiply
   12,003,791.63x = 18,005,700.42 × 5,618,528.01
4. Step 4: Simplify right side
   12,003,791.63x = 101,165,532,149,438.77
5. Step 5: Solve for x
   x = 101,165,532,149,438.77/12,003,791.63
6. Step 6: Final answer
   x = 8,427,798.09