Finding the Fourth Proportional to 78,096,849.30, 117,183,659.88 and 31,408,471.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,096,849.30 : 117,183,659.88 = 31,408,471.32 : x
2. Step 2: Convert to fraction form
   78,096,849.30/117,183,659.88 = 31,408,471.32/x
3. Step 3: Cross multiply
   78,096,849.30x = 117,183,659.88 × 31,408,471.32
4. Step 4: Simplify right side
   78,096,849.30x = 3,680,559,620,513,614.50
5. Step 5: Solve for x
   x = 3,680,559,620,513,614.50/78,096,849.30
6. Step 6: Final answer
   x = 47,128,144.78