Finding the Fourth Proportional to 140,290,079.67, 193,607,057.72 and 77,565,016.98

Step by Step Solution

1. Step 1: Write the proportion equation
   140,290,079.67 : 193,607,057.72 = 77,565,016.98 : x
2. Step 2: Convert to fraction form
   140,290,079.67/193,607,057.72 = 77,565,016.98/x
3. Step 3: Cross multiply
   140,290,079.67x = 193,607,057.72 × 77,565,016.98
4. Step 4: Simplify right side
   140,290,079.67x = 15,017,134,719,499,640
5. Step 5: Solve for x
   x = 15,017,134,719,499,640/140,290,079.67
6. Step 6: Final answer
   x = 107,043,454.21