Finding the Fourth Proportional to 31,076,766.09, 42,894,208.13 and 18,357,618.51

Step by Step Solution

1. Step 1: Write the proportion equation
   31,076,766.09 : 42,894,208.13 = 18,357,618.51 : x
2. Step 2: Convert to fraction form
   31,076,766.09/42,894,208.13 = 18,357,618.51/x
3. Step 3: Cross multiply
   31,076,766.09x = 42,894,208.13 × 18,357,618.51
4. Step 4: Simplify right side
   31,076,766.09x = 787,435,509,047,292.50
5. Step 5: Solve for x
   x = 787,435,509,047,292.50/31,076,766.09
6. Step 6: Final answer
   x = 25,338,399.33