Finding the Fourth Proportional to 54,328,706, 74,984,264.52 and 31,139,378

Step by Step Solution

1. Step 1: Write the proportion equation
   54,328,706 : 74,984,264.52 = 31,139,378 : x
2. Step 2: Convert to fraction form
   54,328,706/74,984,264.52 = 31,139,378/x
3. Step 3: Cross multiply
   54,328,706x = 74,984,264.52 × 31,139,378
4. Step 4: Simplify right side
   54,328,706x = 2,334,963,356,940,268.50
5. Step 5: Solve for x
   x = 2,334,963,356,940,268.50/54,328,706
6. Step 6: Final answer
   x = 42,978,446.00