Finding the Fourth Proportional to 31,007,421, 42,789,823.02 and 17,256,381.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007,421 : 42,789,823.02 = 17,256,381.48 : x
2. Step 2: Convert to fraction form
   31,007,421/42,789,823.02 = 17,256,381.48/x
3. Step 3: Cross multiply
   31,007,421x = 42,789,823.02 × 17,256,381.48
4. Step 4: Simplify right side
   31,007,421x = 738,397,509,494,805.75
5. Step 5: Solve for x
   x = 738,397,509,494,805.75/31,007,421
6. Step 6: Final answer
   x = 23,813,573.84