Finding the Fourth Proportional to 141,267,288.96, 194,965,003.42 and 78,549,640.20

Step by Step Solution

1. Step 1: Write the proportion equation
   141,267,288.96 : 194,965,003.42 = 78,549,640.20 : x
2. Step 2: Convert to fraction form
   141,267,288.96/194,965,003.42 = 78,549,640.20/x
3. Step 3: Cross multiply
   141,267,288.96x = 194,965,003.42 × 78,549,640.20
4. Step 4: Simplify right side
   141,267,288.96x = 15,314,430,870,036,396
5. Step 5: Solve for x
   x = 15,314,430,870,036,396/141,267,288.96
6. Step 6: Final answer
   x = 108,407,480.48