Finding the Fourth Proportional to 100,787,476.32, 139,012,460.18 and 76,008,707.42

Step by Step Solution

1. Step 1: Write the proportion equation
   100,787,476.32 : 139,012,460.18 = 76,008,707.42 : x
2. Step 2: Convert to fraction form
   100,787,476.32/139,012,460.18 = 76,008,707.42/x
3. Step 3: Cross multiply
   100,787,476.32x = 139,012,460.18 × 76,008,707.42
4. Step 4: Simplify right side
   100,787,476.32x = 10,566,157,413,556,022
5. Step 5: Solve for x
   x = 10,566,157,413,556,022/100,787,476.32
6. Step 6: Final answer
   x = 104,836,015.34