Finding the Fourth Proportional to 21,138,764.31, 31,700,368.94 and 7,302,203.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,138,764.31 : 31,700,368.94 = 7,302,203.10 : x
2. Step 2: Convert to fraction form
   21,138,764.31/31,700,368.94 = 7,302,203.10/x
3. Step 3: Cross multiply
   21,138,764.31x = 31,700,368.94 × 7,302,203.10
4. Step 4: Simplify right side
   21,138,764.31x = 231,482,532,308,300.69
5. Step 5: Solve for x
   x = 231,482,532,308,300.69/21,138,764.31
6. Step 6: Final answer
   x = 10,950,617.97