Finding the Fourth Proportional to 80,787,999.30, 121,258,106.55 and 42,477,008.10

Step by Step Solution

1. Step 1: Write the proportion equation
   80,787,999.30 : 121,258,106.55 = 42,477,008.10 : x
2. Step 2: Convert to fraction form
   80,787,999.30/121,258,106.55 = 42,477,008.10/x
3. Step 3: Cross multiply
   80,787,999.30x = 121,258,106.55 × 42,477,008.10
4. Step 4: Simplify right side
   80,787,999.30x = 5,150,681,574,115,013
5. Step 5: Solve for x
   x = 5,150,681,574,115,013/80,787,999.30
6. Step 6: Final answer
   x = 63,755,528.28