Finding the Fourth Proportional to 57,033,949.10, 78,706,870.71 and 30,928,460.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,033,949.10 : 78,706,870.71 = 30,928,460.18 : x
2. Step 2: Convert to fraction form
   57,033,949.10/78,706,870.71 = 30,928,460.18/x
3. Step 3: Cross multiply
   57,033,949.10x = 78,706,870.71 × 30,928,460.18
4. Step 4: Simplify right side
   57,033,949.10x = 2,434,282,316,646,643
5. Step 5: Solve for x
   x = 2,434,282,316,646,643/57,033,949.10
6. Step 6: Final answer
   x = 42,681,286.41